13-letter words containing m, s, t, h
- hellgrammites — Plural form of hellgrammite (Alternative spelling of hellgramites).
- helminthiasis — a disease caused by parasitic worms in the intestines.
- hematogenesis — hematopoiesis.
- hematologists — Plural form of hematologist.
- hematophagous — feeding on blood, as the vampire bat.
- hematopoiesis — the formation of blood.
- hematosalpinx — (medicine) A medical condition involving bleeding into the Fallopian tubes.
- hemichordates — Plural form of hemichordate.
- hemiparasitic — Semiparasitic.
- hemocytoblast — a primordial cell capable of developing into any type of blood cell.
- hepatectomies — Plural form of hepatectomy.
- hereditaments — Plural form of hereditament.
- hermit thrush — a North American thrush, Hylocichla guttata, noted for its complex and appealing song.
- hetero-sexism — a prejudiced attitude or discriminatory practices against homosexuals by heterosexuals.
- heterogametes — Plural form of heterogamete.
- heterostylism — the condition of being heterostyled
- hexadactylism — Sexdactyly.
- histaminergic — releasing histamine
- histochemical — the branch of science dealing with the chemical components of cellular and subcellular tissue.
- histogramming — (mathematics) The construction of histograms.
- histrionicism — histrionic behaviour or acts
- home comforts — things in a house that make it comfortable
- home counties — The Home Counties are the counties which surround London.
- home straight — the section of a racecourse forming the approach to the finish
- homeothermous — remaining at an almost constant temperature
- homestead act — a special act of Congress (1862) that made public lands in the West available to settlers without payment, usually in lots of 160 acres, to be used as farms.
- homestead law — any law exempting homesteads from seizure or sale for debt.
- homoeroticism — a tendency to be sexually aroused by a member of the same sex.
- homogeneities — Plural form of homogeneity.
- homoscedastic — having the same variance.
- homosexuality — sexual desire or behavior directed toward a person or persons of one's own sex.
- honey stomach — the crop of an ant, bee, or other hymenopterous insect, serving as a reservoir for honeydew and nectar, especially the enlarged crop of a honeybee in which nectar is acted on by enzymes to form honey.
- horse's mouth — horse (def 36).
- host computer — the main computer in a network: controls or performs certain functions for other computers.
- hothouse lamb — a lamb born in the fall or early winter, usually reared indoors, specially fed, and marketed when from 9 to 16 weeks of age.
- housemistress — A female teacher in charge of a dormitory at a boarding school.
- humanitarians — Plural form of humanitarian.
- hunter's moon — the first full moon following the harvest moon in late September or early October.
- hybrid system — a way of working, organizing, or doing something that is composed of elements of two separate systems
- hymenopterans — Plural form of hymenopteran.
- hymenopterous — belonging or pertaining to the Hymenoptera, an order of insects having, when winged, four membranous wings, and comprising the wasps, bees, ants, ichneumon flies, and sawflies.
- hymnal stanza — common measure (def 2).
- hymnal-stanza — common time.
- hypsometrical — Of or pertaining to hypsometry.
- hysterotomies — Plural form of hysterotomy.
- hystricomorph — any rodent of the suborder Hystricomorpha, which includes porcupines, cavies, agoutis, and chinchillas
- immunochemist — A chemist whose speciality is immunochemistry.
- isobathytherm — a line on a chart or diagram of a body of water, connecting depths having the same temperature.
- isodrosotherm — a line on a weather map or chart connecting points having an equal dew point.
- isothermobath — a line drawn on a diagram of a vertical section of the ocean connecting all points having equal temperature.