12-letter words containing e, m, a, r
- 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.
- 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.
- hunger march — a procession of protest or demonstration by the unemployed
- hydrobromate — (chemistry) hydrobromide.
- hydromedusae — Irregular plural form of hydromedusa.
- hydrothermal — noting or pertaining to the action of hot, aqueous solutions or gases within or on the surface of the earth.
- hygrothermal — (physics) Of or pertaining to both humidity and temperature.
- hymenopteran — hymenopterous.
- 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.
- hypermarkets — Plural form of hypermarket.
- hypermediacy — Hypermedia literacy; the state of being conversant with hypermedia technologies.
- hypermutable — Of or in a state in which mutation is abnormally frequent.
- hyperosmolar — Of, pertaining to, or as a result of hyperosmolarity.
- hyperrealism — interest in or concern for the actual or real, as distinguished from the abstract, speculative, etc.
- hypersarcoma — a growth of proud or fungous flesh
- hypersomniac — a tendency to sleep excessively.
- hyperthermal — Also, thermic. of, relating to, or caused by heat or temperature: thermal capacity.
- hyperthermia — Pathology. abnormally high fever.
- hypervolemia — (medicine) An abnormal increase in the volume of blood circulating through the body.
- 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.
- imagineering — the implementing of creative ideas into practical form.
- immaterially — In an immaterial manner.
- immatureness — not mature, ripe, developed, perfected, etc.
- immaturities — Plural form of immaturity.
- immeasurable — incapable of being measured; limitless: the immeasurable vastness of the universe.
- immeasurably — incapable of being measured; limitless: the immeasurable vastness of the universe.
- immemorially — In an immemorial manner.
- immensurable — immeasurable.
- immiseration — to make miserable.
- immoderately — In an immoderate manner.