12-letter words containing h, a, r, m
- heavy bomber — a large plane capable of carrying heavy bomb loads for long distances, especially at high altitudes.
- heimskringla — a book of the 13th century narrating the history of the kings of Norway by Snorri Sturluson.
- hellgramites — Plural form of hellgramite.
- hellgrammite — the aquatic larva of a dobsonfly, used as bait in fishing.
- hemapheresis — apheresis.
- hemarthrosis — (pathology) bleeding in the joints.
- hemerocallis — the genus comprising the day lilies.
- hemichordate — belonging or pertaining to the chordates of the phylum Hemichordata, comprising small, widely distributed, marine animals, as the acorn worms.
- hemihydrates — Plural form of hemihydrate.
- hemiparasite — A plant that obtains or may obtain part of its food by parasitism, e.g., mistletoe, which also photosynthesizes.
- hemodialyzer — artificial kidney.
- hemorrhaging — a profuse discharge of blood, as from a ruptured blood vessel; bleeding.
- hemorrhoidal — Usually, hemorrhoids. Pathology. an abnormally enlarged vein mainly due to a persistent increase in venous pressure, occurring inside the anal sphincter of the rectum and beneath the mucous membrane (internal hemorrhoid) or outside the anal sphincter and beneath the surface of the anal skin (external hemorrhoid)
- hereditament — any inheritable estate or interest in property.
- hermetically — so as to be airtight: hermetically sealed.
- 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.
- heterogamete — either of a pair of conjugating gametes differing in form, size, structure, or sex.
- heterogamety — the condition or state of being heterogametic
- heterogamous — Genetics. having unlike gametes, or reproducing by the union of such gametes (opposed to isogamous).
- 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
- hoary marmot — a large marmot, Marmota caligata, living in mountainous areas of Siberia and northwestern North America and having a heavy, yellow-gray body, short black limbs, and black and white head and shoulders.
- hobby farmer — a person who runs a farm as a hobby rather than a means of making a living
- holidaymaker — vacationer.
- home address — the address of one's house or flat
- home and dry — If you say that someone is, in British English home and dry, or in American English home free, you mean that they have been successful or that they are certain to be successful.
- home teacher — private tutor
- home theater — big-screen TV setup
- homeotherapy — therapy for a disease by means of an agent that is similar to but not identical with the causative agent of the disease.
- homeothermal — homoiothermal.
- homesteaders — Plural form of homesteader.
- homoromantic — Romantically attracted to those of the same gender.
- hop hornbeam — any of several Eurasian and North American trees of the genus Ostrya, of the birch family, especially O. virginiana, bearing hoplike fruiting clusters.
- hopper frame — a window frame having one or more upper sashes hinged at the bottoms and opening inward.
- horometrical — Relating to horometry.
- horse manure — horse's excrement
- 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.
- housemasters — Plural form of housemaster.
- housewarming — a party to celebrate a person's or family's move to a new home.
- human nature — the psychological and social qualities that characterize humankind, especially in contrast with other living things.
- 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.