12-letter words containing m, e, t, h
- helianthemum — (botany) Any of the genus Helianthemum of rockroses.
- heliotropism — heliotropic tendency or growth.
- hellgramites — Plural form of hellgramite.
- hellgrammite — the aquatic larva of a dobsonfly, used as bait in fishing.
- helmet liner — a soft or padded lining for a helmet.
- helmet shell — a predatory marine gastropod of the family Cassidae, characterized by a thick, heavy shell with a broadened outer lip.
- hemangiomata — See under angioma.
- hemarthrosis — (pathology) bleeding in the joints.
- hematoblasts — Plural form of hematoblast.
- hematochezia — the passage of bloody stools.
- hematocolpos — (medicine) A medical condition in which the vagina fills with menstrual blood, often caused by the combination of menstruation with an imperforate hymen.
- hematogenous — originating in the blood.
- hematologist — the study of the nature, function, and diseases of the blood and of blood-forming organs.
- hematophobia — Fear of bleeding or the sight of blood.
- 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.
- hemimetaboly — Hemimetabolism.
- hemimorphite — a hydrous zinc silicate mineral, Zn 4 (OH) 2 Si 2 O 7 ⋅H 2 O, occurring in clear, colorless orthorhombic crystals; calamine: an ore of zinc.
- hemiparasite — A plant that obtains or may obtain part of its food by parasitism, e.g., mistletoe, which also photosynthesizes.
- hemiplankton — plankton that spend part of their life cycle in a vegetative state on the sea bottom, riverbed, etc. (opposed to holoplankton).
- hemiscotosis — hemianopsia.
- hemodilution — a decreased concentration of cells and solids in blood, usually caused by an influx of fluid.
- hemotoxicity — Toxicity that affects the blood (especially that affects red blood cells).
- hemstitching — Present participle of hemstitch.
- hepatomegaly — an abnormal enlargement of the liver, usually associated with liver disease or heart failure.
- hephthemimer — a verse with a group of seven metrical half feet
- hereditament — any inheritable estate or interest in property.
- hermeneutics — the science of interpretation, especially of the Scriptures.
- hermetically — so as to be airtight: hermetically sealed.
- herstmonceux — a village in S England, in E Sussex north of Eastbourne: 15th-century castle, site of the Royal Observatory, which was transferred from Greenwich between 1948 and 1958, until 1990
- heterochrome — heterochromatic.
- 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).
- heteromerous — having or consisting of parts that differ in quality, number of elements, or the like: a heteromerous flower.
- heteromorphy — (biology) The state or quality of being heteromorphic; heteromorphism.
- heteronomous — subject to or involving different laws.
- heteronymous — of, relating to, or characteristic of a heteronym.
- heterosexism — a prejudiced attitude or discriminatory practices against homosexuals by heterosexuals.
- heterotherms — Plural form of heterotherm.
- heterothermy — The possession of characteristics of both poikilothermy and homeothermy.
- hi-fi system — a complete system of high-quality sound-reproducing equipment
- hierogrammat — a writer of hierograms.
- hindforemost — with the back part in the front place
- histochemist — someone who specializes in histochemistry
- hit the mark — to achieve one's aim; be successful in one's attempt
- hojatoleslam — a title of respect given to an ayatollah or a middle-ranking Shiite cleric, which means literally 'proof of Islam'
- holmes light — a canister, attached to a life buoy or float, containing calcium carbonate and calcium phosphide, which ignite spontaneously on contact with the water, emitting conspicuous fire and smoke.
- home country — the country a person comes from
- home posting — an appointment to a position within one's own country