hyacinth |ˈhaɪəsɪnθ| — a red transparent variety of zircon used as a gemstone

hyaena |haɪˈiːnə| — doglike nocturnal mammal of Africa and southern Asia that feeds chiefly on carrion

hyaline |ˈhaɪəlɪn| — a glassy translucent substance that occurs in hyaline cartilage or in certain skin conditions

hyalite |ˈhaɪəˌlaɪt| — (mineralogy) A form of opal.

hyaloid |ˈhaɪəˌlɔɪd| — the transparent membrane enveloping the vitreous humor of the eye and separating it from the retina

hybrid |ˈhaɪbrɪd| — a word that is composed of parts from different languages (e.g., `monolingual' has a Greek prefix and a Latin root)

hybridity  — the state of being hybrid; hybridism

hybridization |ˌhaɪbrɪdəˈzeɪʃn| — (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids

hybridize |ˈhaɪbrɪdaɪz| — breed animals or plants using parents of different races and varieties

hydra |ˈhaɪdrə| — (Greek mythology) monster with nine heads; when struck off each head was replaced by two new ones

hydrangea |haɪˈdreɪndʒə| — any of various deciduous or evergreen shrubs of the genus Hydrangea

hydrant |ˈhaɪdrənt| — a faucet for drawing water from a pipe or cask

hydrargyrum |haɪˈdrɑːrdʒərəm| — a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures

hydrate |ˈhaɪdreɪt| — any compound that contains water of crystallization

hydration |haɪˈdreɪʃn| — the process of combining with water; usually reversible

hydraulic |haɪˈdrɔːlɪk| — moved or operated or effected by liquid (water or oil)

hydraulics |haɪˈdrɔːlɪks| — study of the mechanics of fluids

hydride |ˈhaɪˌdraɪd| — any binary compound formed by the union of hydrogen and other elements

hydro |ˈhaɪdrəʊ| — hydroelectric

hydroaeroplane |ˈhaɪdrəʊˈeərəpleɪn| — (aviation, obsolete) a floatplane, an airplane specialized for operating on water, having pontoon floats instead of skids or wheels

hydrocarbon |ˌhaɪdrəˈkɑːrbən| — an organic compound containing only carbon and hydrogen

hydrochloric |ˌhaɪdrəˈklɒrɪk| — (chemistry) Of or relating to hydrochloric acid.

hydrocyanic |haɪdrəʊsɪaɪˈænɪk| — Of or pertaining to hydrocyanic acid or its compounds

hydrodynamics |ˌhaɪdrəʊdaɪˈnæmɪks| — study of fluids in motion

hydroelectric |ˌhaɪdrəʊɪˈlektrɪk| — of or relating to or used in the production of electricity by waterpower

hydrofluoric |ˌhaɪdrəʊfluːˈɔːrɪk| — (chemistry) Containing hydrogen and fluorine.

hydrofoil |ˈhaɪdrəfɔɪl| — a device consisting of a flat or curved piece (as a metal plate) so that its surface reacts to the water it is passing through

hydrogen |ˈhaɪdrədʒən| — a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

hydrogenous |haɪˈdrɑːdʒənəs| — of, related to, or containing hydrogen

hydrography |haɪˈdrɑːɡrəfiː| — the science of the measurement and description and mapping of the surface waters of the earth with special reference to navigation

hydrologic  — Of or pertaining to hydrology.

hydrological  — Of or pertaining to hydrology.

hydrology |haɪˈdrɑːlədʒɪ| — the branch of geology that studies water on the earth and in the atmosphere: its distribution and uses and conservation

hydrolysis |haɪˈdrɑːlɪsɪs| — a chemical reaction in which water reacts with a compound to produce other compounds; involves the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion from the water

hydromechanics |ˌhaɪdrəʊməˈkænɪks| — (physics) fluid mechanics, especially when dealing with water

hydrometer |haɪˈdrɑːmətər| — a measuring instrument for determining the specific gravity of a liquid or solid

hydropathic |ˌhaɪdrəˈpæθɪk| — of or relating to hydropathy or its administration

hydropathical  — Alternative form of hydropathic.

hydropathy |haɪˈdrɒpəθɪ| — the internal and external use of water in the treatment of disease

hydrophobia |ˌhaɪdrəˈfəʊbɪə| — a symptom of rabies in humans consisting of an aversion to swallowing liquids

hydrophone |ˈhaɪdrəfəʊn| — a transducer that converts underwater sound waves into electrical signals, rather like a microphone

hydrophyte |ˈhaɪdrəˌfaɪt| — a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth

hydropic |haɪˈdrɑːpɪk| — Dropsical.

hydroplane |ˈhaɪdrəpleɪn| — an airplane that can land on or take off from water

hydroponics |ˌhaɪdrəˈpɑːnɪks| — a technique of growing plants (without soil) in water containing dissolved nutrients

hydropower |ˈhaɪdrə(ʊ)paʊə| — hydroelectric power

hydrops  — swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities

hydropsy |ˈhaɪdrɑːpsiː| — dropsy

hydrosphere |ˈhaɪdrəʊsfɪr| — the watery layer of the earth's surface; includes water vapor

hydrostatic |ˌhaɪdrəˈstætɪk| — relating to fluids at rest or to the pressures they exert or transmit

hydrostatical  — Alternative form of hydrostatic.

hydrostatics |haɪdrəˈstætɪks| — study of the mechanical properties of fluids that are not in motion

hydrotherapeutic  — Of or pertaining to hydrotherapy.

hydrotherapy |ˌhaɪdrəʊˈθerəpɪ| — the internal and external use of water in the treatment of disease

hydrothermal |haɪdrəˈθɜːml| — of, or relating to hot water

hydrous |ˈhaɪdrəs| — containing combined water (especially water of crystallization as in a hydrate)

hydroxide |haɪˈdrɑːksaɪd| — a compound of an oxide with water

hyena |haɪˈiːnə| — doglike nocturnal mammal of Africa and southern Asia that feeds chiefly on carrion

hygiene |ˈhaɪdʒiːn| — a condition promoting sanitary practices

hygienic |haɪˈdʒenɪk| — tending to promote or preserve health

hygienical |haɪˈdʒiːnɪkəl| — tending to promote or preserve health

hygienics |haɪdʒiːˈenɪks| — the science concerned with the prevention of illness and maintenance of health

hygrometer |haɪˈɡrɑːmətər| — measuring instrument for measuring the relative humidity of the atmosphere

hygroscopic |ˌhaɪɡrəˈskɑːpɪk| — absorbing moisture (as from the air)

hylic |ˈhaɪlɪk| — Having to do with or of the nature of matter or material.

hylotheism |haɪləˈθiːɪzəm| — Theory equating matter with God or merging one into the other (see pantheism).

hymen |ˈhaɪmən| — (Greek mythology) the god of marriage

hymeneal |ˈhaɪmeniːəl| — a wedding hymn

hymn |hɪm| — a song of praise (to God or to a saint or to a nation)

hymn-book |ˈhɪmnəl| — Alternative spelling of hymnbook.

hymnal |ˈhɪmnəl| — a songbook containing a collection of hymns

hymnary |ˈhɪmnərɪ| — a songbook containing a collection of hymns

hymnbook |ˈhɪmbʊk| — a songbook containing a collection of hymns

hyp |haɪp| — (entertainment) hypnotism; hypnotist

hype |haɪp| — blatant or sensational promotion

hyperactive |ˌhaɪpərˈæktɪv| — more active than normal

hyperactivity |ˌhaɪpərækˈtɪvətɪ| — a condition characterized by excessive restlessness and movement

hyperaemia |ˌhaɪpərˈiːmɪə| — increased blood in an organ or other body part

hyperbola |haɪˈpɜːrbələ| — an open curve formed by a plane that cuts the base of a right circular cone

hyperbolae |haɪˈpɜːbəliː| — plural form of hyperbola

hyperbole |haɪˈpɜːrbəlɪ| — extravagant exaggeration

hyperbolic |ˌhaɪpərˈbɑːlɪk| — enlarged beyond truth or reasonableness

hyperbolical |ˌhaɪpɜːˈbɒlɪkəl| — Hyperbolic

hyperborean |ˌhaɪpərˈbɔːrɪən| — (Greek mythology) one of a people that the ancient Greeks believed lived in a warm and sunny land north of the source of the north wind

hypercritical |ˌhaɪpərˈkrɪtɪkəl| — inclined to judge too severely

hypercriticism  — Excessive or unfairly harsh criticism.

hyperemia  — increased blood in an organ or other body part

hyperinflation |ˌhaɪpərɪnˈfleɪʃn| — (economics) A very high rate of Inflation.

hypermarket |ˈhaɪpərmɑːrkɪt| — a huge supermarket (usually built on the outskirts of a town)

hypermedia |ˌhaɪpərˈmiːdɪə| — a multimedia system in which related items of information are connected and can be presented together

hypermetric  — Having a redundant syllable.

hypermetrical |ˈhaɪpɜːˈmetrɪkəl| — hypermetric

hypermetropia |ˌhaɪpərməˈtrəʊpɪə| — abnormal condition in which vision for distant objects is better than for near objects

hypermetropic  — abnormal ability to focus of distant objects

hyperopia |haɪpəˈrəʊpɪə| — abnormal condition in which vision for distant objects is better than for near objects

hyperopic  — abnormal ability to focus of distant objects

hyperplasia |ˌhaɪpəˈpleɪzɪə| — abnormal increase in number of cells

hyperrealism  — A style in art that attempts to reproduce highly realistic graphic representations

hypersensitive |ˌhaɪpərˈsensətɪv| — having an allergy or peculiar or excessive susceptibility (especially to a specific factor)

hypersonic |ˌhaɪpərˈsɑːnɪk| — (of a speed, aviation) equal to, or greater than, or capable of achieving, five times the speed of sound.

hypertension |ˌhaɪpərˈtenʃn| — a common disorder in which blood pressure remains abnormally high (a reading of 140/90 mm Hg or greater)

hypertensive |ˌhaɪpərˈtensɪv| — a person who has abnormally high blood pressure

hypertext |ˈhaɪpərtekst| — machine-readable text that is not sequential but is organized so that related items of information are connected

hypertrophy |haɪˈpɜːrtrəfɪ| — abnormal enlargement of a body part or organ

hyphen |ˈhaɪfn| — a punctuation mark (-) used between parts of a compound word or between the syllables of a word when the word is divided at the end of a line of text

hyphenate |ˈhaɪfəneɪt| — divide or connect with a hyphen

hyphenated |ˈhaɪfəˌnetəd| — simple past tense and past participle of hyphenate

hyphenation |ˈhaɪfəneɪʃən| — division of a word especially at the end of a line on a page

hypnosis |hɪpˈnəʊsɪs| — a state that resembles sleep but that is induced by suggestion

hypnotic |hɪpˈnɑːtɪk| — a drug that induces sleep

hypnotism |ˈhɪpnətɪzəm| — the act of inducing hypnosis

hypnotist |ˈhɪpnətɪst| — a person who induces hypnosis

hypnotize |ˈhɪpnətaɪz| — induce hypnosis in

hypnotizing |ˈhɪpnətaɪzɪŋ| — Present participle of hypnotize.

hypo |ˈhaɪpəʊ| — a compound used as a fixing agent in photographic developing

hypochlorite  — any salt or ester of hypochlorous acid

hypochondria |ˌhaɪpəˈkɑːndrɪə| — chronic and abnormal anxiety about imaginary symptoms and ailments

hypochondriac |ˌhaɪpəˌkɑːnˈdraɪəkl| — a patient with imaginary symptoms and ailments

hypocrisy |hɪˈpɑːkrəsɪ| — an expression of agreement that is not supported by real conviction

hypocrite |ˈhɪpəkrɪt| — a person who professes beliefs and opinions that he or she does not hold in order to conceal his or her real feelings or motives

hypocritical |ˌhɪpəˈkrɪtɪkl| — professing feelings or virtues one does not have

hypodermatic |ˌhaɪpəʊdɜːˈmætɪk| — Alternative form of hypodermic.

hypodermic |ˌhaɪpəˈdɜːrmɪk| — a piston syringe that is fitted with a hypodermic needle for giving injections

hypophyses |haɪˈpɒfɪsiːz| — plural form of hypophysis

hypophysis |haɪˈpɑːfɪsɪs| — the master gland of the endocrine system; located at the base of the brain

hyposulphite |ˌhaɪpəʊˈsʌlfaɪt| — Alternative spelling of hyposulfite.

hypotenuse |haɪˈpɑːtənuːs| — the side of a right triangle opposite the right angle

hypothalamus |ˌhaɪpəˈθæləməs| — a basal part of the diencephalon governing autonomic nervous system

hypothec |haɪˈpɑːθɪk| — (law) In Scotland, a landlord's right over the stocking (cattle, implements, etc.), and crops of his tenant, as security for payment of rent.

hypothecate |haɪˈpɒθɪkeɪt| — pledge without delivery or title of possession

hypothecated |haɪˈpɒθɪkeɪtɪd| — simple past tense and past participle of hypothecate

hypothecation  — The use of property, or an existing mortgage, as security for a loan, etc.

hypothermia |ˌhaɪpəˈθɜːrmɪə| — subnormal body temperature

hypotheses |haɪˈpɑːθəˌsɪz| — plural form of hypothesis

hypothesis |haɪˈpɑːθəsɪs| — a proposal intended to explain certain facts or observations

hypothesize |haɪˈpɑːθəsaɪz| — to believe especially on uncertain or tentative grounds

hypothesized |haɪˈpɑːθəˌsaɪzd| — simple past tense and past participle of hypothesize

hypothetic |ˌhaɪpəʊˈθetɪk| — based primarily on surmise rather than adequate evidence

hypothetical |ˌhaɪpəˈθetɪkl| — a hypothetical possibility, circumstance, statement, proposal, situation, etc.

hypothyroidism |ˌhaɪpəʊˈθaɪrɔɪdɪzəm| — an underactive thyroid gland; a glandular disorder resulting from insufficient production of thyroid hormones

hypsometric |ˌhɪpsəˈmetrɪk| — Of or pertaining to hypsometry.

hyson |ˈhaɪsən| — a Chinese green tea with twisted leaves

hyssop |ˈhɪsəp| — a European mint with aromatic and pungent leaves used in perfumery and as a seasoning in cookery; often cultivated as a remedy for bruises; yields hyssop oil

hysterectomy |ˌhɪstəˈrektəmɪ| — surgical removal of the uterus

hysteresis |hɪstəˈriːsɪs| — the lagging of an effect behind its cause; especially the phenomenon in which the magnetic induction of a ferromagnetic material lags behind the changing magnetic field

hysteria |hɪˈstɪrɪə| — state of violent mental agitation

hysteric |həˈsterɪk| — a person suffering from hysteria

hysterical |hɪˈsterɪkl| — characterized by or arising from psychoneurotic hysteria

hysterics |hɪˈsterɪks| — an attack of hysteria