14-letter words containing o, s, p, r
- incorporealism — Existence without a body or material form; immateriality.
- incorporeities — Plural form of incorporeity.
- inspirationism — a belief in some form of divine inspiration, esp the belief that Christian Scripture was divinely inspired
- inspirationist — an adherent of inspirationism
- instructorship — a person who instructs; teacher.
- insulinotropic — That stimulates or affects the production of insulin.
- interest group — a group of people drawn or acting together in support of a common interest or to voice a common concern: Political interest groups seek to influence legislation.
- interiorscaper — One who works in interiorscaping.
- interpolations — Plural form of interpolation.
- introspectible — to practice introspection; consider one's own internal state or feelings.
- introspections — Plural form of introspection.
- ion propulsion — Rocketry. a projected type of propulsion for vehicles in outer space, the exhaust consisting of positive ions and negative electrons repelled from the vehicle by electrostatic forces, resulting in a very high exhaust velocity.
- irresponsibles — Plural form of irresponsible.
- isentropically — in an isentropic manner
- isocyano group — the univalent group −NC.
- isomorphically — In an isomorphic manner.
- jet propulsion — the propulsion of a body by its reaction to a force ejecting a gas or a liquid from it.
- joint passport — a single passport shared by two or more people, such as a passport shared by a parent and child
- kamloops trout — a variety of rainbow trout found in Canadian lakes
- karakoram pass — a high pass (5575 m (18 290 ft)) that crosses the Karakoram mountains in N Kashmir
- kastrop-rauxel — Castrop-Rauxel.
- kentish plover — Charadrius alexandrinus, a small wading bird belonging to the plover family, breeding in the tropics and subtropics; it is white and greyish-brown, with black legs and bill
- king's proctor — a British judiciary officer who may intervene in probate, nullity, or divorce actions when collusion, suppression of evidence, or other irregularities are alleged.
- kleptoparasite — A bird, insect, or other animal that habitually robs animals of other species of food.
- knockout drops — a drug secretly put into someone's drink to cause stupefaction
- know the ropes — to perceive or understand as fact or truth; to apprehend clearly and with certainty: I know the situation fully.
- laryngoscopies — Plural form of laryngoscopy.
- lawson cypress — Port Orford cedar.
- le misanthrope — a comedy (1666) by Molière.
- legislatorship — The office or position of a legislator.
- leopard's-bane — any composite plant of the genus Doronicum, of Europe and Asia, having alternate, usually clasping leaves and heads of yellow flowers.
- lepidopterists — Plural form of lepidopterist.
- leukodystrophy — (medicine) Any of a group of disorders characterized by progressive degeneration of the white matter of the brain, caused by imperfect growth or development of the myelin sheath that acts as an insulator around nerve fibres.
- lexicographers — Plural form of lexicographer.
- lexicographist — (chiefly, archaic) A student specialising in the discipline of lexicography; lexicographer.
- lipogrammatism — the practice or art of writing lipograms
- lipogrammatist — a person who writes lipograms
- locker-lampson — Frederick (Frederick Locker) 1821–95, English poet.
- locking pliers — pliers whose jaws are connected at a sliding pivot, permitting them to be temporarily locked in a fixed position for ease in grasping and turning nuts.
- lopping shears — long-handled pruning shears.
- lord spiritual — a bishop or archbishop belonging to the House of Lords.
- lords temporal — a member of the House of Lords who is not a member of the clergy.
- lugger topsail — a fore-and-aft topsail used above a lugsail.
- lz compression — Lempel-Ziv compression
- macrocephalous — Having a large head.
- macrosporangia — Plural form of macrosporangium.
- magnetospheres — Plural form of magnetosphere.
- magnetospheric — Of, pertaining to, or happening within the magnetosphere.
- major prophets — theology
- mangrove swamp — a coastal marine swamp of tropical or subtropical regions that is dominated by mangrove trees.