9-letter words starting with hy
- hydroptic — (formerly) edema.
- hydropult — a type of water pump or machine that expels water by means of hand power, as, for example, a fire extinguisher
- hydroseed — to sow (a field, lawn, etc.) with seed by distribution in a stream of water propelled through a hose.
- hydrosere — a sere originating in water.
- hydrosols — Plural form of hydrosol.
- hydrosoma — hydrosome.
- hydrosome — the entire body of a compound hydrozoan.
- hydrostat — an electrical device for detecting the presence of water, as from overflow or leakage.
- hydrovane — a vane on a seaplane conferring stability on water (a sponson) or facilitating take off (a hydrofoil)
- hydroxide — a chemical compound containing the hydroxyl group.
- hydrozoan — any freshwater or marine coelenterate of the class Hydrozoa, including free-swimming or attached types, as the hydra, in which one developmental stage, either the polyp or medusa, is absent, and colonial types, as the Portuguese man-of-war, in which both medusa and polyp stages are present in a single colony.
- hydrozoon — (zoology) One of the Hydrozoa.
- hyenalike — Resembling a hyena or some aspect of one.
- hyetology — the branch of meteorology dealing with precipitation.
- hygienics — hygiene (def 1).
- hygienist — an expert in hygiene.
- hygiology — The science of the preservation of health.
- hygristor — an electronic component the resistance of which varies with humidity
- hygrodeik — A form of hygrometer having wet and dry bulb thermometers, with an adjustable index showing the percentage of moisture in the air, etc.
- hygrogram — the record made by a hygrograph.
- hygrology — the study of humidity of the air or atmosphere
- hygrostat — an instrument for measuring and controlling humidity.
- hylobates — Plural form of hylobate.
- hylophyte — a plant that grows in woods
- hylozoism — the doctrine that matter is inseparable from life, which is a property of matter.
- hymenaean — someone who adheres to the hymenaean belief that there will be no future resurrection
- hymeneals — (plurale tantum) Nuptials.
- hymettian — a mountain in SE Greece, near Athens. 3370 feet (1027 meters).
- hymn book — Also called hymnbook [him-boo k] /ˈhɪmˌbʊk/ (Show IPA). a book of hymns for use in a religious service.
- hymnbooks — Plural form of hymnbook.
- hymnodies — Plural form of hymnody.
- hymnodist — the singing or the composition of hymns or sacred songs.
- hymnology — the study of hymns, their history, classification, etc.
- hynagogic — Misspelling of hypnagogic.
- hyolithid — any invertebrate of the extinct genus Hyolithes, most common in the Cambrian Period, having a limy, univalve shell, and thought to be related to the pteropods.
- hypallage — the reversal of the expected syntactic relation between two words, as in “her beauty's face” for “her face's beauty.”.
- hypanthia — Plural form of hypanthium.
- hypaspist — a shield bearer, especially one of a special unit of light infantry in the Macedonian army.
- hyper-man — A browser available with Epoch giving hypertext access to the Unix manual.
- hyperacid — Highly acidic.
- hyperarid — being without moisture; extremely dry; parched: arid land; an arid climate.
- hyperbase — (database) An experimental active multi-user database for hypertext systems from the University of Aalborg, written in C++. It is built on the client-server model enabling distributed, concurrent, and shared access from workstations in a local area network. See also EHTS.
- hyperbola — the set of points in a plane whose distances to two fixed points in the plane have a constant difference; a curve consisting of two distinct and similar branches, formed by the intersection of a plane with a right circular cone when the plane makes a greater angle with the base than does the generator of the cone. Equation: x 2 /a 2 − y 2 /b 2 = ±1.
- hyperbole — obvious and intentional exaggeration.
- hypercard — A software package by Bill Atkinson for storage and retrieval of information on the Macintosh. It can handle images and is designed for browsing. The powerful customisable interactive user interface allows new applications to be easily constructed by manipulating objects on the screen, often without conventional programming, though the language HyperTalk can be used for more complex tasks.
- hypercube — A geometric figure in four or more dimensions that is analogous to a cube in three dimensions.
- hyperemia — an abnormally large amount of blood in any part of the body.
- hyperemic — an abnormally large amount of blood in any part of the body.
- hyperfine — Extremely fine, especially of the hyperfine structure in the spectra of atoms and molecules.
- hyperform — a pronunciation or grammatical form or usage produced by hypercorrection.