13-letter words containing i, m, a, o
- haemodynamics — a branch of physiology that deals with the circulation of the blood
- haemorrhaging — Present participle of haemorrhage.
- hail columbia — hell (used as a euphemism): He caught Hail Columbia for coming home late.
- half mourning — a mourning garb less somber than deep mourning, usually following a period of deep mourning.
- half-mourning — a mourning garb less somber than deep mourning, usually following a period of deep mourning.
- halobacterium — Any of various extremophiles, of genus Halobacterium, found in water saturated or nearly saturated with salt.
- harmonic mean — the mean obtained by taking the reciprocal of the arithmetic mean of the reciprocals of a set of nonzero numbers.
- harmonic tone — a tone produced by suppressing the fundamental tone and bringing into prominence one of its overtones.
- harmonisation — (British spelling) alternative spelling of harmonization.
- harmonization — to bring into harmony, accord, or agreement: to harmonize one's views with the new situation.
- hatemongering — The behaviour of a hatemonger; the spreading of hatred.
- heart monitor — a machine that registers the activity of the heart
- hematogenesis — hematopoiesis.
- hematological — Hematologic.
- hematologists — Plural form of hematologist.
- hematopoiesis — the formation of blood.
- hematopoietic — the formation of blood.
- hematosalpinx — (medicine) A medical condition involving bleeding into the Fallopian tubes.
- hemichordates — Plural form of hemichordate.
- hemimetabolic — (zoology) Having an incomplete metamorphosis, the larvae differing from the adults chiefly in lacking wings.
- hemolymphatic — a fluid in the body cavities and tissues of invertebrates, in arthropods functioning as blood and in some other invertebrates functioning as lymph.
- hemp agrimony — a European composite plant, Eupatorium cannabinum, having dull purplish flowers.
- hepatectomies — Plural form of hepatectomy.
- hermaphrodism — the condition of being a hermaphrodite.
- hermaphrodite — an individual in which reproductive organs of both sexes are present. Compare pseudohermaphrodite.
- heterogametic — (of a species or individual organism) having two unlike gametes.
- hexamethonium — a compound, C 10 H 24 N 2 , used in the treatment of severe hypertension to lower blood pressure and increase blood flow by blocking transmission of nerve impulses that constrict blood vessels.
- hierogrammate — a writer of hierograms
- histochemical — the branch of science dealing with the chemical components of cellular and subcellular tissue.
- histogramming — (mathematics) The construction of histograms.
- holiday-maker — vacationer.
- holidaymakers — Plural form of holidaymaker.
- holometabolic — Of, pertaining to, or undergoing holometabolism.
- homalographic — representing parts with like proportions.
- home invasion — an act or instance of entering an occupied residence with the intent to commit a burglary or other crime.
- home straight — the section of a racecourse forming the approach to the finish
- homiletically — In a homiletic fashion.
- homochromatic — of or relating to one hue; monochromatic.
- homoepitaxial — (materials science) Having the same orientation.
- homogenetical — of, involving or relating to homogeny
- homoiothermal — having a body temperature that is relatively constant and mostly independent of the temperature of the environment; warm-blooded (opposed to poikilothermic).
- homolographic — representing parts with like proportions.
- homoscedastic — having the same variance.
- homosexualism — A sexual attraction to (or sexual relations with) individuals of the same sex.
- homosexuality — sexual desire or behavior directed toward a person or persons of one's own sex.
- hoodman-blind — blindman's buff.
- hopkinsianism — a modified Calvinism taught by Samuel Hopkins (1721–1803), that emphasized the sovereignty of God, the importance of His decrees, and the necessity of submitting to His will, accepting even damnation, if required, for His glory, and holding that ethics is merely disinterested benevolence.
- house-warming — a party to celebrate a person's or family's move to a new home.
- housewarmings — Plural form of housewarming.
- human cloning — the act of producing a human as a clone