19-letter words containing a, t, l
- nonrepresentational — not resembling or portraying any object in physical nature: a nonrepresentational painting.
- nordrhein-westfalen — German name of North Rhine-Westphalia.
- normal distribution — a theoretical frequency distribution represented by a normal curve.
- north valley stream — a town on W Long Island, in SE New York.
- north-central state — a state of N Nigeria. Capital: Kaduna. Pop: 4 438 007 (1995 est). Area: 46 053 sq km (17 781 sq miles)
- north-northeasterly — a wind or storm coming from the north-northeast
- not by a long chalk — by no means; not possibly
- not by a long sight — on no account; not at all
- not much to look at — unattractive or unimpressive
- novell data systems — (company) A small computer hardware company building CP/M Z80-based systems. They later went on to become Novell, Inc. and develop Novell Netware.
- nuclear disarmament — the gradual reduction and eventual elimination of all nuclear weapons in the world
- nuclear power plant — factory that generates atomic energy
- observation balloon — a balloon that is used for gathering information and reconnaissance purposes and spotting aircraft
- occupational hazard — a danger or hazard to workers that is inherent in a particular occupation: Silicosis is an occupational hazard of miners.
- occupational health — Occupational health is the branch of medicine that deals with the health of people in their workplace or in relation to their job.
- office-block ballot — a ballot on which the candidates are listed alphabetically, with or without their party designations, in columns under the office for which they were nominated.
- oil-catalyst slurry — Oil-catalyst slurry is a heavy aromatic by-product of a refinery's fluid catalytic cracking unit, that forms a small part of global fuel oil supply.
- old english pattern — a spoon pattern having a stem curving backward at the end.
- old man and the sea — a novel (1952) by Ernest Hemingway.
- old spanish customs — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- olive-backed thrush — Swainson's thrush.
- on the baker's list — in good health
- open the floodgates — If events open the floodgates to something, they make it possible for that thing to happen much more often or much more seriously than before.
- operational testing — (testing) A US DoD term for testing performed by the end-user on software in its normal operating environment.
- optical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
- optical mark reader — (hardware) (OMR) A special scanning device that can read carefully placed pencil marks on specially designed documents. OMR is frequenty used in forms, questionnaires, and answer-sheets.
- oral interpretation — the study and practice of vocally expressing the meaning of written compositions, especially of literature.
- orange flower water — a distilled infusion of orange blossom, used in cakes, confectionery, etc
- oriental fruit moth — a moth, Grapholitha molesta, introduced into the U.S. from Asia, the larvae of which infest and feed on the twigs and fruits of peach, plum, and related trees.
- oscillating circuit — a circuit producing electrical oscillations.
- otorhinolaryngology — otolaryngology.
- out at (the) elbows — shabby; poverty-stricken
- outplacement agency — an agency that provides counselling and careers advice, esp to redundant executives, which is paid for by their previous employer
- over-centralization — the act or fact of centralizing; fact of being centralized.
- over-sentimentality — the quality or state of being sentimental or excessively sentimental.
- oxidation potential — (in a galvanic cell) the potential of the electrode at which oxidation occurs.
- oxyacetylene burner — a blowpipe for cutting or welding metals at high temperatures
- palaeoethnobotanist — someone who studies fossil seeds and grains to further archaeological knowledge, esp of the domestication of cereals
- paleoanthropologist — the study of the origins and predecessors of the present human species, using fossils and other remains.
- palomar observatory — an astronomical observatory situated on Palomar Mountain in S California, having a 200-inch (508-cm) reflecting telescope and a 48-inch (122-cm) Schmidt telescope.
- papal infallibility — the dogma that the pope cannot err in a solemn teaching addressed to the whole church on a matter of faith or morals.
- parallactic ellipse — the apparent ellipse, as seen against the background of more distant stars, described annually by a nearby star because of the earth's orbital motion around the sun. Compare parallax (def 2).
- parallel projection — a projection from one plane to a second plane in which the lines joining points on the first plane and corresponding images are parallel.
- parliament building — structure housing legislative offices
- parliamentary agent — (in Britain) a person who is employed to manage the parliamentary business of a private group
- parthenogenetically — development of an egg without fertilization.
- particle dispersoid — A particle dispersoid is a suspension of solid particles in a gas.
- particle kinematics — Particle kinematics is the study of the movement of particles, without considering the forces that cause this movement.
- particle separation — a rule that moves the particle of a phrasal verb, thus deriving a sentence like He looked the answer up from a structure that also underlies He looked up the answer
- particle technology — Particle technology is knowledge and study which relates to particles, and is used in industry.