English dictionary


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

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)

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

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

hydrodynamics |ˌhaɪdroʊdaɪˈnæmɪks| — study of fluids in motion

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

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

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

hydrology |haɪˈdrɑːlədʒi| — 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

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

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

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

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

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

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

hydrosphere |ˈhaɪdroʊsfɪr| — 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

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

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

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)

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

hymeneal |ˈhaɪmenɪːəl| — a wedding hymn

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

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

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

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

hype |haɪp| — blatant or sensational promotion

hyperactive |ˌhaɪpərˈæktɪv| — more active than normal

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

hyperaemia |ˌhʌɪpərˈiːmɪə| — 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

hyperbole |haɪˈpɜːrbəli| — extravagant exaggeration

hyperbolic |ˌhaɪpərˈbɑːlɪk| — enlarged beyond truth or reasonableness

hyperborean |ˌhaɪpərˈbɔːriən| — (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

hyperemia  — increased blood in an organ or other body part

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

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

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

hypermetropic  — abnormal ability to focus of distant objects

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

hyperopic  — abnormal ability to focus of distant objects

hyperplasia |ˌhʌɪpəˈpleɪzɪə| — abnormal increase in number of cells

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

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 |haɪˈpɜːrtrəfi| — 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

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

hypnosis |hɪpˈnoʊsɪs| — 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

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

hypochlorite  — any salt or ester of hypochlorous acid

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

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

hypocrisy |hɪˈpɑːkrəsi| — 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

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

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

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

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

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

hypothermia |ˌhaɪpəˈθɜːrmiə| — subnormal body temperature

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

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

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

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

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

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 |ˌhɪstəˈrektəmi| — 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 |hɪˈstɪriə| — state of violent mental agitation

hysteric |həˈsterik| — a person suffering from hysteria

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

hysterics |hɪˈsterɪks| — an attack of hysteria