13-letter words containing o, t, m, y
- grandmotherly — of or characteristic of a grandmother.
- grey-thompson — Tanni (Carys Davina) Baroness. born 1969, Welsh wheelchair athlete; won eleven gold medals for Britain in wheelchair racing in the Paralympic Games (1988–2004); a crossbench peer in the House of Lords since 2010
- gross anatomy — the branch of anatomy that deals with structures that can be seen with the naked eye.
- gynaecomastia — abnormal overdevelopment of the breasts in a man
- gyromagnetism — the condition or state of being gyromagnetic
- helminthology — the scientific study of worms, especially of parasitic worms.
- hemacytometer — hemocytometer.
- hemicolectomy — (surgery) A colectomy involving the removal of only the ascending (right) colon or the descending (left) colon.
- hemocytoblast — a primordial cell capable of developing into any type of blood cell.
- hemocytometer — an instrument for counting blood cells.
- hemolymphatic — a fluid in the body cavities and tissues of invertebrates, in arthropods functioning as blood and in some other invertebrates functioning as lymph.
- hermaphrodyte — (archaic) alternative spelling of hermaphrodite.
- heterostylism — the condition of being heterostyled
- homiletically — In a homiletic fashion.
- 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.
- hormic theory — a theory that holds all behavior to be purposive, whether conscious or unconscious.
- hydroxymethyl — (organic chemistry, especially in combination) The univalent radical HO-CH2-.
- hygrometrical — Alternative form of hygrometric.
- 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.
- hypermetropia — a condition of the eye in which parallel rays are focused behind the retina, distant objects being seen more distinctly than near ones; farsightedness (opposed to myopia).
- hypermetropic — Exhibiting or relating to hypermetropia.
- hypermobility — An excess amount of elasticity in a bodily joint.
- hypermorality — conformity to the rules of right conduct; moral or virtuous conduct.
- hypermotility — excessive motility of the stomach or intestine (opposed to hypomotility).
- hypermutation — (uncountable) Frequent mutation.
- hyperromantic — extremely or excessively romantic
- hypometabolic — Relating to hypometabolism.
- hyponatraemia — a condition in which there is a low concentration of sodium in the blood
- hypsometrical — Of or pertaining to hypsometry.
- hyracotherium — eohippus.
- hysterotomies — Plural form of hysterotomy.
- hystricomorph — any rodent of the suborder Hystricomorpha, which includes porcupines, cavies, agoutis, and chinchillas
- idiomatically — peculiar to or characteristic of a particular language or dialect: idiomatic French.
- idiorrhythmic — self-regulating; allowing each member to regulate his or her own life
- ileocolostomy — the surgical formation of an artificial opening between the ileum and the colon.
- immunotherapy — treatment designed to produce immunity to a disease or enhance the resistance of the immune system to an active disease process, as cancer.
- impecuniosity — having little or no money; penniless; poor.
- impersonality — absence of human character or of the traits associated with the human character: He feared the impersonality of a mechanized world.
- impolitically — In a way that is impolitic.
- importunately — urgent or persistent in solicitation, sometimes annoyingly so.
- impossibility — condition or quality of being impossible.
- improbability — the quality or condition of being improbable; unlikelihood.
- improvability — to bring into a more desirable or excellent condition: He took vitamins to improve his health.
- improvidently — In an improvident manner.
- improvisatory — of, relating to, or characteristic of an improvisation or improvisator.
- incompetently — not competent; lacking qualification or ability; incapable: an incompetent candidate.
- incriminatory — to accuse of or present proof of a crime or fault: He incriminated both men to the grand jury.
- inductothermy — the production of fever by means of electromagnetic induction.