14-letter words containing m, o, r, t, a
- operating room — a specially equipped room, usually in a hospital, where surgical procedures are performed. Abbreviation: OR.
- operationalism — the doctrine that the meaning of a scientific term, concept, or proposition consists of the operation or operations performed in defining or demonstrating it.
- ophthalmometer — an instrument for measuring the reflection of an image on the surface of the cornea and other capacities of the eye, used chiefly for determining the presence and degree of astigmatism.
- ophthalmometry — the measurement and determination of the eye's defects and powers of refraction
- optical isomer — any of two or more isomers exhibiting optical isomerism.
- options market — a market in which options are traded
- oral eroticism — libidinal pleasure derived from the lips and mouth, for example by kissing
- ordnance datum — mean sea level calculated from observation taken at Newlyn, Cornwall, and used as the official basis for height calculation on British maps
- organic matter — matter derived from organisms, esp decayed matter in soil
- organometallic — pertaining to or noting an organic compound containing a metal or a metalloid linked to carbon.
- ornamentations — Plural form of ornamentation.
- orthochromatic — representing correctly the relations of colors as found in a subject; isochromatic.
- orthomolecular — being or pertaining to the treatment of disease by increasing, decreasing, or otherwise controlling the intake of natural substances, especially vitamins. Compare megavitamin (def 1).
- orthonormalize — (mathematics) To make a set of vectors both orthogonal and normalized.
- osmoregulation — the process by which cells and simple organisms maintain fluid and electrolyte balance with their surroundings.
- osmoregulatory — Of or pertaining to osmoregulation.
- osteochondroma — (medicine) A benign tumor consisting of bone or cartilage.
- osteodermatous — characterized by osteodermal skin
- osteosarcomata — Plural form of osteosarcoma.
- ottoman empire — a former Turkish empire that was founded about 1300 by Osman and reached its greatest territorial extent under Suleiman in the 16th century; collapsed after World War I. Capital: Constantinople.
- outboard motor — a portable gasoline engine with propeller and tiller, clamped on the stern of a boat.
- outer garments — the garments that are worn over a person's other clothes
- outer mongolia — a region in Asia including Inner Mongolia of China and the Mongolian People's Republic.
- outmaneuvering — Present participle of outmaneuver.
- outmanoeuvring — Present participle of outmanoeuvre.
- outperformance — The act or state of outperforming.
- ovariectomized — Simple past tense and past participle of ovariectomize.
- over-ambitious — having ambition; eagerly desirous of achieving or obtaining success, power, wealth, a specific goal, etc.: ambitious students.
- over-dramatize — to put into a form suitable for acting on a stage.
- over-stimulate — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
- overadjustment — an adjustment that is too great
- overallotments — Plural form of overallotment.
- overcompensate — to compensate or reward excessively; overpay: Some stockholders feel the executives are being overcompensated and that bonuses should be reduced.
- overcomplicate — to make complex, intricate, involved, or difficult: His recovery from the operation was complicated by an allergic reaction.
- overdramatized — Simple past tense and past participle of overdramatize.
- overenthusiasm — absorbing or controlling possession of the mind by any interest or pursuit; lively interest: He shows marked enthusiasm for his studies.
- overestimating — Present participle of overestimate.
- overestimation — An excessive estimation.
- overmedication — the act or instance of medicating unnecessarily or excessively
- overmodulation — excessive amplitude modulation, resulting in distortion of a signal.
- oyster farming — the activity of cultivating oysters for food or pearls
- pachydermatous — of, relating to, or characteristic of pachyderms.
- pancreatectomy — excision of part or all of the pancreas.
- pantopragmatic — a busybody; someone who interferes with everything
- parchment worm — any of several polychaete worms of the genus Chaetopterus that secrete and live in a U -shaped, parchmentlike tube.
- parenchymatous — Botany. the fundamental tissue of plants, composed of thin-walled cells able to divide.
- parent company — a corporation or other business enterprise that owns controlling interests in one or more subsidiary companies (distinguished from holding company).
- pembroke table — a drop-leaf table with fly rails and with a drawer at one end or each end of the skirt.
- performability — the quality of being performable
- permanent echo — a radar signal reflected to a radar station on the ground by a building or other fixed object.