15-letter words containing s, i, o, u, a
- gulf of argolis — an inlet of the Aegean Sea, in the E Peloponnese
- hamamelidaceous — belonging to the Hamamelidaceae, the witch hazel family of plants.
- harbour station — the part of a port where boats shelter or station
- heat exhaustion — a condition characterized by faintness, rapid pulse, nausea, profuse sweating, cool skin, and collapse, caused by prolonged exposure to heat accompanied by loss of adequate fluid and salt from the body.
- heterosexualism — Discrimination of non-heterosexual people on the basis of their sexual orientation.
- heterosexuality — sexual feeling or behavior directed toward a person or persons of the opposite sex.
- homosexualities — Plural form of homosexuality.
- horatius cocles — a legendary Roman hero of the 6th century bc, who defended a bridge over the Tiber against Lars Porsena
- horse latitudes — the latitudes near 30°N or 30°S at sea, characterized by baffling winds, calms, and high barometric pressure
- house physician — a house officer working in a medical as opposed to a surgical discipline
- housewifization — The process by which the division of labor has relegated women into housewives.
- human relations — the study of group behavior for the purpose of improving interpersonal relationships, as among employees.
- humidifications — Plural form of humidification.
- hyperfastidious — extremely or excessively fastidious
- hypoinsulinemia — (medicine) An abnormally low level of insulin in the blood.
- hypopituitarism — abnormally diminished activity of the pituitary gland, especially of the anterior lobe.
- ibero-maurusian — of or relating to an Epipaleolithic culture of northwestern Africa that preceded the Capsian culture and was once erroneously thought to have originated in southwestern Europe; characterized by the use of backed bladelets, occupation of the maritime plain, and the hunting of the Barbary sheep.
- ignatius loyola — Saint Ignatius of (Iñigo López de Loyola) 1491–1556, Spanish soldier and ecclesiastic: founder of the Society of Jesus.
- image-conscious — concerned about the way one comes across to other people and the impression one creates
- immunoadsorbent — immunosorbent.
- immunoassayable — Suitable for immunoassay.
- immunodiagnosis — serodiagnosis.
- immunoreactions — Plural form of immunoreaction.
- immunostimulant — (immunology, pharmacology) Any substance that stimulates an immune response.
- importunateness — Quality of being importunate.
- in some measure — a unit or standard of measurement: weights and measures.
- in your dreams! — You say `In your dreams!' when you think that what someone wants is never going to happen or be true.
- incapaciousness — the quality of not having (sufficiently) great capacity
- incommensurable — not commensurable; having no common basis, measure, or standard of comparison.
- incommensurably — In an incommensurable manner; immeasurably.
- inconsequential — of little or no importance; insignificant; trivial.
- inefficaciously — Without efficacy or effect.
- inertial fusion — a type of nuclear fusion in which the inertia of matter enables it to fuse by impact, as by pulses of laser radiation or high-energy charged particles, rather than by high temperature
- inquisitorially — In an inquisitorial manner.
- instantaneously — occurring, done, or completed in an instant: an instantaneous response.
- institutionally — of, relating to, or established by institution.
- instrumentation — the arranging of music for instruments, especially for an orchestra.
- insubordinately — In an insubordinate manner.
- insubordination — the quality or condition of being insubordinate, or of being disobedient to authority; defiance: The employee was fired for insubordination.
- insurrectionary — of, relating to, or of the nature of insurrection.
- interfoliaceous — situated between leaves, especially opposite leaves.
- involuntariness — The state of being involuntary; unwillingness; automatism.
- iridocapsulitis — inflammation of the iris and the capsule of the lens.
- islands council — (in Scotland since 1975) any of the three divisions (Orkney, Shetland, and the Western Isles) into which the Scottish islands are divided for purposes of local government
- isoimmunization — the development of isoantibodies within an individual in order to protect against antigens derived from a different member of the same species
- je ne sais quoi — an indefinable, elusive quality, especially a pleasing one: She has a certain je ne sais quoi that charms everybody.
- john of austria — ("Don John") 1547?–78, Spanish naval commander and general: victor at the battle of Lepanto.
- judeo-christian — of or relating to the religious writings, beliefs, values, or traditions held in common by Judaism and Christianity.
- jukebox musical — a musical play or film that is based around a series of well-known popular songs
- just intonation — a system of tuning based on the pure perfect fifth and major third.