13-letter words containing a, c, e, y
- haemodynamics — a branch of physiology that deals with the circulation of the blood
- hard currency — money that is backed by gold reserves and is readily convertible into foreign currencies.
- haskell curry — (person) Haskell Brooks Curry (1900-09-12 - 1982-09-01). The logician who re-invented and developed combinatory logic. The functional programming language Haskell was named after him.
- heat capacity — the heat required to raise the temperature of a substance one degree.
- heavenly city — the abode of God and His saints; heaven. Rev. 21:2.
- heavy cruiser — a naval cruiser having 8-inch (20.3-cm) guns as its main armament.
- hemacytometer — hemocytometer.
- hemocytoblast — a primordial cell capable of developing into any type of blood cell.
- hemolymphatic — a fluid in the body cavities and tissues of invertebrates, in arthropods functioning as blood and in some other invertebrates functioning as lymph.
- heptasyllabic — having seven syllables
- heuristically — serving to indicate or point out; stimulating interest as a means of furthering investigation.
- hexadactylism — Sexdactyly.
- hexadactylous — hexadactylic
- hockey player — sportsperson: plays hockey
- holy alliance — a league formed by the principal sovereigns of Europe in 1815 with the professed object of promoting Christian brotherhood but the practical object of repressing democratic revolutions and institutions. The English and Turkish rulers and Pope Pius VII did not join the league.
- holy mackerel — astonishment
- homiletically — In a homiletic fashion.
- 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.
- human ecology — ecology (def 4).
- hyacinth bean — an Old World tropical vine, Dolichos lablab, of the legume family, having purple or white flowers and black or white seeds in a papery, beaked pod.
- hydroaerobics — aerobic exercises performed in water, as in a swimming pool.
- hydrocephalic — of or relating to hydrocephalus.
- hydrocephalus — an accumulation of serous fluid within the cranium, especially in infancy, due to obstruction of the movement of cerebrospinal fluid, often causing great enlargement of the head; water on the brain.
- hydrofracture — (geology) Rock fracture caused by the pressure of freezing water.
- hygrometrical — Alternative form of hygrometric.
- hyperactivate — (biology) To cause or undergo hyperactivation.
- hyperactively — In a hyperactive manner.
- hyperactivity — the condition of being hyperactive.
- hypercalcemia — an abnormally large amount of calcium in the blood.
- hypercautious — Especially or unreasonably cautious.
- hypercinnabar — (mineral) A form of cinnabar that forms hexagonal crystals.
- hypercritical — excessively or meticulously critical; overcritical.
- hypercyanotic — blueness or lividness of the skin, as from imperfectly oxygenated blood.
- hyperdactylia — the presence of extra fingers or toes.
- hypergalactia — an abnormally large secretion of milk.
- hyperglycemia — an abnormally high level of glucose in the blood.
- hypermagnetic — (physics) Extremely magnetic.
- hypermetrical — Hypermetric.
- hyperphysical — being above or beyond the physical; immaterial; supernatural.
- hyperreactive — Showing a much greater than normal response to a stimulus.
- hyperromantic — extremely or excessively romantic
- hypersarcosis — a fleshy outgrowth
- hypersurfaces — Plural form of hypersurface.
- hyperthetical — Misspelling of hypothetical.
- hyperuricemia — an excess of uric acid in the blood, often producing gout.
- hypervascular — pertaining to, composed of, or provided with vessels or ducts that convey fluids, as blood, lymph, or sap.
- hypocalcaemia — (medical) alternative spelling of hypocalcemia.
- hypocalcaemic — of or relating to hypocalcaemia
- hypoglycaemia — (medical) alternative spelling of hypoglycemia.
- hypoglycaemic — Alternative spelling of hypoglycemic.