12-letter words containing h, e, r, o, i
- heterosocial — relating to or denoting mixed-sex social relationships
- heterotactic — of, relating to, or characterized by heterotaxis.
- heterotopias — Plural form of heterotopia.
- hexachloride — a chloride containing six atoms of chlorine.
- hexafluoride — a fluoride containing six atoms of fluorine.
- hexobarbital — a barbiturate with hypnotic and sedative properties
- hibernations — Plural form of hibernation.
- hickory pine — bristlecone pine.
- hide or hair — the pelt or skin of one of the larger animals (cow, horse, buffalo, etc.), raw or dressed.
- hidropoiesis — the production of sweat.
- hierocracies — Plural form of hierocracy.
- hieroglyphic — Also, hieroglyphical. designating or pertaining to a pictographic script, particularly that of the ancient Egyptians, in which many of the symbols are conventionalized, recognizable pictures of the things represented.
- hierogrammat — a writer of hierograms.
- hierographer — a writer of hierographs
- hierographic — of or relating to hierographs
- hierophanies — Plural form of hierophany.
- hierophantic — (in ancient Greece) an official expounder of rites of worship and sacrifice.
- high polymer — a polymer composed of a large number of monomers.
- high profile — a deliberately conspicuous manner of living or operating.
- high treason — treason against the sovereign or state.
- high-colored — deep in color; vivid.
- high-powered — extremely energetic, dynamic, and capable: high-powered executives.
- high-profile — prominent publicly
- high-protein — (of a food) rich in proteins
- highschooler — (US) A student at a high school.
- hindforemost — with the back part in the front place
- hippo regius — a seaport of ancient Numidia: St. Augustine was bishop here a.d. 395–430; the site of modern Annaba, in Algeria.
- hippocentaur — Centaur.
- hippocrepian — (of an aquatic organism or plant) shaped like a horseshoe
- hire company — a company that hires things out to people
- historicized — Simple past tense and past participle of historicize.
- hit the road — a long, narrow stretch with a smoothed or paved surface, made for traveling by motor vehicle, carriage, etc., between two or more points; street or highway.
- hit the roof — the external upper covering of a house or other building.
- hobble skirt — a woman's skirt that is very narrow at the bottom, causing the wearer to walk with short, mincing steps.
- holidaymaker — vacationer.
- holy picture — a picture of a person or thing that is of religious importance
- homebuilders — Plural form of homebuilder.
- homeomorphic — similarity in crystalline form but not necessarily in chemical composition.
- homeothermic — (biology, of an, animal) Capable of maintaining a relatively constant body temperature independent of the surrounding environment.
- homoiotherms — Plural form of homoiotherm.
- homoiothermy — having a body temperature that is relatively constant and mostly independent of the temperature of the environment; warm-blooded (opposed to poikilothermic).
- hoovervilles — a collection of huts and shacks, as at the edge of a city, housing the unemployed during the 1930s.
- horatian ode — an ode consisting of several stanzas all of the same form.
- horned viper — a highly venomous viper, Cerastes cerastes, of northern Africa and extreme southwestern Asia, having a process resembling a horn just above each eye.
- horned whiff — any of several flatfishes having both eyes on the left side of the head, of the genus Citharichthys, as C. cornutus (horned whiff) inhabiting Atlantic waters from New England to Brazil.
- horometrical — Relating to horometry.
- horribleness — causing or tending to cause horror; shockingly dreadful: a horrible sight.
- horse marine — (formerly) a marine mounted on horseback or a cavalryman doing duty on shipboard.
- horse pistol — a large pistol formerly carried by horsemen.
- horse racing — a contest of speed among horses that either are ridden by jockeys or pull sulkies and their drivers.