9-letter words containing a, p, o, r
- foreparts — Plural form of forepart.
- forepeaks — Plural form of forepeak.
- foreplane — (nautical, aeronautics) A relatively flat surface located well forward of a vehicle's center of gravity used for stability and, when movable, used for steering and attitude control; common on submarines, also used on surface ships and aircraft.
- forespeak — to predict; foretell.
- four-part — arranged for four voices or instruments
- fox grape — a vine, Vitis labrusca, chiefly of the northeastern U.S., from which numerous cultivated grape varieties have been developed.
- frogspawn — The eggs of a frog, which are surrounded by transparent jelly.
- frontpage — Alternative spelling of front page.
- galeproof — Capable of resisting a gale.
- gallopers — Plural form of galloper.
- gas poker — a long tubular gas burner used to kindle a fire
- gaspergou — freshwater drum.
- gastropod — any mollusk of the class Gastropoda, comprising the snails, whelks, slugs, etc.
- gastropub — a bar that serves good food and high-quality alcoholic beverages.
- gay power — the organized political influence exerted by homosexuals as a group, especially to ensure equal rights in employment, housing, etc.
- geocarpic — pertaining to geocarpy
- geography — the science dealing with the areal differentiation of the earth's surface, as shown in the character, arrangement, and interrelations over the world of such elements as climate, elevation, soil, vegetation, population, land use, industries, or states, and of the unit areas formed by the complex of these individual elements.
- glory-pea — either of two trailing plants, Clianthus formosus or C. puniceus, of Australia and New Zealand, having showy red flowers.
- godparent — a godfather or godmother.
- gorakhpur — a city in SE Uttar Pradesh, in N India.
- grab rope — a rope supported to afford a hold for a person walking up a gangplank, working aloft, etc.
- grapeshot — a cluster of small cast-iron balls formerly used as a charge for a cannon.
- grassplot — a plot of ground covered with or reserved for grass.
- groupable — Capable of being grouped together.
- groupmate — A member of the same group.
- groupware — software that allows users on a network to work together and communicate effectively: Our company uses groupware to share files, databases, calendars, and email.
- guardpost — Alternative spelling of guard post.
- gyroplane — autogiro.
- ha'p'orth — a person considered as specified
- hammerkop — A bird from southern Africa, Scopus umbretta, of the Scopidae family and related to the herons.
- hard copy — copy, as computer output printed on paper, that can be read without using a special device (opposed to soft copy).
- hard porn — hard-core pornography.
- harpooned — Simple past tense and past participle of harpoon.
- harpooner — a barbed, spearlike missile attached to a rope, and thrown by hand or shot from a gun, used for killing and capturing whales and large fish.
- heatproof — not affected or damaged by heat, especially when placed in an oven or over a direct flame: heatproof cookware.
- hippocras — an old medicinal cordial made of wine mixed with spices.
- hodograph — the figure described by the extremity of a vector that has a fixed origin and a position vector equal to the velocity of a moving particle.
- holograph — Also, holographic [hol-uh-graf-ik, hoh-luh-] /ˌhɒl əˈgræf ɪk, ˌhoʊ lə-/ (Show IPA), holographical. wholly written by the person in whose name it appears: a holograph letter.
- homograph — a word of the same written form as another but of different meaning and usually origin, whether pronounced the same way or not, as bear 1 “to carry; support” and bear 2 “animal” or lead 1 “to conduct” and lead 2 “metal.”.
- homophora — A reference that requires some type of general knowledge to understand.
- homopolar — of uniform polarity; not separated or changed into ions; not polar in activity.
- honeytrap — A stratagem in which irresistible bait is used to lure a victim.
- horseplay — rough or boisterous play or pranks.
- hospodars — Plural form of hospodar.
- hourplate — the dial of a clock or watch
- 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.
- hypernova — (astronomy) The gravitational collapse of a massive star to form a black hole.
- hyperopia — a condition of the eye in which parallel rays are focused behind the retina, distant objects being seen more distinctly than near ones; farsightedness (opposed to myopia).
- hyperoxia — (pathology) A condition caused by an excess of oxygen in tissues and organs.
- hypobaric — (of an anesthetic) having a specific gravity lower than that of cerebrospinal fluid. Compare hyperbaric (def 1).