12-letter words containing l, o, n, r, t
- oil industry — petroleum-processing business
- oil minister — a government official responsible for the oil industry in their country
- oil terminal — a large industrial complex where oil is stored and from which oil is transported elsewhere; an oil depot
- olfactronics — the measurement and analysis of smells through instruments
- on the alert — fully aware and attentive; wide-awake; keen: an alert mind.
- on the prowl — to rove or go about stealthily, as in search of prey, something to steal, etc.
- open cluster — a comparatively young, irregularly shaped group of stars, often numbering up to several hundred, and held together by mutual gravitation; usually found along the central plane of the Milky Way and other galaxies.
- open slather — to spread or apply thickly: to slather butter on toast.
- open trailer — any dog that barks or bays on the trail of its quarry.
- oregon trail — a route used during the U.S. westward migrations, especially in the period from 1840 to 1860, starting in Missouri and ending in Oregon. About 2000 miles (3200 km) long.
- organoleptic — perceived by a sense organ.
- oriental rug — a rug or carpet woven usually in Asia and characterized by hand-knotted pile.
- ornamentally — In an ornamental way.
- ornithogalum — any plant of the genus Ornithogalum
- ornithophily — pollination of flowers by birds
- ortho-xylene — Chemistry. a clear, colorless, poisonous, flammable liquid, C 8 H 10 , the ortho isomer of xylene: used chiefly in the synthesis of phthalic anhydride.
- orthogonally — Mathematics. Also, orthographic. pertaining to or involving right angles or perpendiculars: an orthogonal projection. (of a system of real functions) defined so that the integral of the product of any two different functions is zero. (of a system of complex functions) defined so that the integral of the product of a function times the complex conjugate of any other function equals zero. (of two vectors) having an inner product equal to zero. (of a linear transformation) defined so that the length of a vector under the transformation equals the length of the original vector. (of a square matrix) defined so that its product with its transpose results in the identity matrix.
- outer london — the group of London Boroughs that form a ring around the city of London in the UK
- outer planet — any of the four planets with orbits outside the orbit of Mars, namely, the planets Jupiter, Saturn, Uranus, and Neptune.
- outgeneraled — Simple past tense and past participle of outgeneral.
- over-inflate — to distend; swell or puff out; dilate: The king cobra inflates its hood.
- over-reliant — having or showing dependence: reliant on money from home.
- overlengthen — to extend excessively
- overplotting — the provision of an excessively elaborate plot
- ovolactarian — lacto-ovo-vegetarian.
- oyster plant — salsify.
- pain control — methods for the relief and management of pain
- paint roller — a roller of absorbent material, mounted on a handle, that is rolled in a trough of paint and then rolled over a flat surface to be painted.
- palindromist — a word, line, verse, number, sentence, etc., reading the same backward as forward, as Madam, I'm Adam or Poor Dan is in a droop.
- panel doctor — a doctor within a given area available for consultation by patients insured under the National Health Insurance Scheme
- pantaloonery — foolery; humorous entertainment
- paralation c — Paralation embedded in C. Under development.
- paralyzation — to affect with paralysis.
- paranthelion — a bright spot in the sky caused by refraction and occurring at an angular distance from the sun of between 90° and 140°
- partial tone — one of the pure tones forming a part of a complex tone.
- pastoralness — the quality or state of being pastoral or rural
- patent flour — a fine grade of flour, consisting chiefly of the inner part of the endosperm.
- patent rolls — (in Britain) the register of patents issued
- patroclinous — inheritance in which the traits of the offspring are derived primarily from the paternal parent (opposed to matrocliny).
- patrol wagon — an enclosed truck or van used by the police to transport prisoners.
- pearl button — a button (as for fastening a shirt, blouse, etc) made of pearl or mother-of-pearl
- pectoral fin — (in fishes) either of a pair of fins usually situated behind the head, one on each side, and corresponding to the forelimbs of higher vertebrates.
- pentyl group — any of the univalent, isomeric groups having the formula C 5 H 1 1 –.
- perceptional — the act or faculty of perceiving, or apprehending by means of the senses or of the mind; cognition; understanding.
- perinatology — a field of medicine focusing on problems emerging during the perinatal period.
- peritoneally — through the peritoneum
- perle cotton — a two-ply mercerized cotton thread used chiefly in handweaving and needlework.
- perorational — of, pertaining to, or characteristic of a peroration
- pest control — rats, insects: extermination
- petrobutanol — butyl alcohol.