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19-letter words containing t, r, o, c

  • noughts and crosses — tick-tack-toe (def 1).
  • noughts-and-crosses — tick-tack-toe (def 1).
  • nuclear power plant — factory that generates atomic energy
  • object-oriented sql — (language)   (OSQL) A functional language, a superset of SQL, used in Hewlett-Packard's OpenODB database system.
  • occupation grouping — a category in a system of classifying people according to occupation, based originally on information obtained by government census and subsequently developed by market research. The classifications are used by the advertising industry to identify potential markets. The groups are A, B, C1, C2, D, and E
  • occupational hazard — a danger or hazard to workers that is inherent in a particular occupation: Silicosis is an occupational hazard of miners.
  • officer of the deck — a naval duty officer responsible for the operation of the ship in the absence of the captain or the executive officer. Abbreviation: O.O.D.
  • 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.
  • okeechobee waterway — a waterway in S Florida from the Atlantic Ocean to the Gulf of Mexico. 155 miles (244 km) long.
  • ole custom controls — (programming)   (OCX) An Object Linking and Embedding (OLE) custom control allowing infinite extension of the Microsoft Access control set. OCX is similar in purpose to VBX used in Visual Basic. Available OCX's include "Scroll Bar Control", "Calendar Control", and "Data Outline Control".
  • olive-backed thrush — Swainson's thrush.
  • on no consideration — for no reason whatsoever; never
  • open-hearth furnace — a process of steelmaking in which the charge is laid in a furnace (open-hearth furnace) on a shallow hearth and heated directly by burning gas as well as radiatively by the furnace walls.
  • open-hearth process — a process of steelmaking in which the charge is laid in a furnace (open-hearth furnace) on a shallow hearth and heated directly by burning gas as well as radiatively by the furnace walls.
  • operations director — a director or senior manager who oversees the efficiency of business operations
  • operations research — the analysis, usually involving mathematical treatment, of a process, problem, or operation to determine its purpose and effectiveness and to gain maximum efficiency.
  • 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.
  • optimising compiler — (programming, tool)   compiler which attempts to analyse the code it produces and to produce more efficient code by performing program transformation such as branch elimination, partial evaluation, or peep-hole optimisation. Contrast pessimising compiler.
  • orthopaedic surgeon — a surgeon specializing in the branch of surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
  • orthopaedic surgery — surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
  • oscillating circuit — a circuit producing electrical oscillations.
  • over-centralization — the act or fact of centralizing; fact of being centralized.
  • overhead projection — the projection (using an overhead projector) of an enlarged image of a transparency onto a surface above and behind the person using it
  • oxidation-reduction — a chemical reaction between two substances in which one substance is oxidized and the other reduced.
  • oxyacetylene burner — a blowpipe for cutting or welding metals at high temperatures
  • oysters rockefeller — oysters topped typically with cooked spinach, cream sauce or butter, bacon, and seasonings, and broiled in a bed of rock salt: served on a half shell
  • pancreatic fibrosis — cystic fibrosis.
  • 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.
  • parametric equation — one of two or more equations expressing the location of a point on a curve or surface by determining each coordinate separately.
  • parasympathomimetic — having an effect similar to that produced when the parasympathetic nervous system is stimulated
  • parathyroid extract — an aqueous preparation obtained from the parathyroid gland of cattle, used in medicine chiefly in cases of parathyroid deficiency and in veterinary medicine in the treatment of tetanic convulsions.
  • parthenogenetically — development of an egg without fertilization.
  • participatory sport — a sport in which people take part, (as opposed to a spectator sport)
  • particle dispersoid — A particle dispersoid is a suspension of solid particles in a gas.
  • 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.
  • particular solution — a solution of a differential equation containing no arbitrary constants.
  • party-column ballot — Indiana ballot.
  • pastoral counseling — the use of psychotherapeutic techniques by trained members of the clergy to assist parishioners who seek help for personal or emotional problems.
  • pattern recognition — the automated identification of shapes or forms or patterns of speech.
  • paumotu archipelago — Tuamotu Archipelago.
  • pedestrian crossing — place to cross road
  • penecontemporaneous — formed during or shortly after the formation of the containing rock stratum: penecontemporaneous minerals.
  • perfect competition — when neither producer nor consumer controls price
  • perfect progressive — a verb form including the auxiliary have followed by been and a present participle, noting the continuation of an activity or event, its incompleteness or interruption, and its connection to the temporal point of reference, as in I've been waiting for over an hour, They had been talking about her before she came into the room, or In July, he will have been living here for two years.
  • performance anxiety — the stage fright that a person feels when they are about to perform (a play, piece of music etc) in front of an audience
  • performance targets — the expected or predicted success level of an individual, company or organization
  • persecution complex — an acute irrational fear that other people are plotting one's downfall and that they are responsible for one's failures
  • personal watercraft — a jet-propelled boat ridden like a motorcycle.
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