12-letter words containing a, r, m, i
- heroic drama — Restoration tragedy, especially that popular in England c1660–1700, using highly rhetorical language and written in heroic couplets.
- heroicomical — blending heroic and comic elements: a heroicomic poem.
- hibernaculum — a protective case or covering, especially for winter, as of an animal or a plant bud.
- hidrocystoma — An adenoma of the sweat glands.
- hierogrammat — a writer of hierograms.
- hill farming — the activity and business of having a hill farm
- hiram revels — Hiram Rhoades [rohdz] /roʊdz/ (Show IPA), 1822–1901, U.S. clergyman, educator, and politician: first black senator 1870–71.
- hire company — a company that hires things out to people
- hit the mark — to achieve one's aim; be successful in one's attempt
- holidaymaker — vacationer.
- homoromantic — Romantically attracted to those of the same gender.
- horometrical — Relating to horometry.
- horse marine — (formerly) a marine mounted on horseback or a cavalryman doing duty on shipboard.
- horsemanship — the art, ability, skill, or manner of a horseman.
- house martin — a small European swallow, Delichon urbica, that builds its nest under the eaves of houses.
- housewarming — a party to celebrate a person's or family's move to a new home.
- human rights — basic civil freedoms
- human safari — an organized tour that takes tourists to unfamiliar places where they can observe the lifestyle of indigenous or other local people: human safaris to remote tribal communities; a human safari through the slums of Mumbai.
- humanitarian — having concern for or helping to improve the welfare and happiness of people.
- humeral veil — a fringed scarf, usually white and ornamented in the middle, worn over the shoulders by a priest or subdeacon during certain parts of a High Mass.
- hydatidiform — like or resembling a hydatid
- hydrargyrism — mercurialism.
- hydrodynamic — pertaining to forces in or motions of liquids.
- hyperdynamic — (physiology) Describing an increase in both blood pressure and pulse pressure.
- hyperkalemia — an abnormally high concentration of potassium in the blood.
- hyperkalemic — Having a high percentage of potassium in one's blood.
- hyperlipemia — excessive amounts of fat and fatty substances in the blood; lipemia.
- hypermagical — produced by or as if by magic: The change in the appearance of the room was magical.
- hypermediacy — Hypermedia literacy; the state of being conversant with hypermedia technologies.
- hyperrealism — interest in or concern for the actual or real, as distinguished from the abstract, speculative, etc.
- hypersomniac — a tendency to sleep excessively.
- hyperthermia — Pathology. abnormally high fever.
- hypervolemia — (medicine) An abnormal increase in the volume of blood circulating through the body.
- hypogastrium — the lower and median part of the abdomen.
- hyponatremia — (medicine) An abnormally low concentration of sodium (or salt) in blood plasma.
- hysteromania — unusually increased sexual desire in a woman
- iambographer — a person who writes iambs
- ian maclaren — James Dewey, born 1928, U.S. biologist: Nobel Prize in medicine 1962.
- iatrochemist — a person who practises iatrochemistry
- icbm address — (networking, humour) (Or "missile address") The form used to register a site with the Usenet mapping project includes a space for longitude and latitude, preferably to seconds-of-arc accuracy. This is actually used for generating geographically-correct maps of Usenet links on a plotter; however, it has become traditional to refer to this as one's "ICBM address" or "missile address", and many people include it in their sig block with that name. (A real missile address would include target altitude.)
- idea hamster — a person who is employed as a source of new ideas
- ill-mannered — having bad or poor manners; impolite; discourteous; rude.
- illiberalism — narrowminded; bigoted.
- illuminators — Plural form of illuminator.
- illuminatory — Increasing informative qualities; explanatory.
- imagineering — the implementing of creative ideas into practical form.
- imidacloprid — The insecticide 1-(6-chloro-3-pyridylmethyl)-N-nitroimidazolidin-2-ylideneamine used to control fleas in domestic pets.
- immaterially — In an immaterial manner.
- immatureness — not mature, ripe, developed, perfected, etc.
- immaturities — Plural form of immaturity.