19-letter words containing op
- 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.
- operational testing — (testing) A US DoD term for testing performed by the end-user on software in its normal operating environment.
- 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
- paleoanthropologist — the study of the origins and predecessors of the present human species, using fossils and other remains.
- peak envelope power — (communications) (PEP) The maximum power output by a radio transmitter over one complete RF cycle at any modulation.
- phenylpropanolamine — a substance, C 9 H 1 3 NO, related to ephedrine and amphetamine, available in various popular nonprescription diet aids as an appetite suppressant.
- philosopher's stone — a substance sought by alchemists that would be capable of transmuting baser metals into gold or silver and of prolonging life.
- philosophers' stone — a substance sought by alchemists that would be capable of transmuting baser metals into gold or silver and of prolonging life.
- philosophical logic — the branch of philosophy that studies the relationship between formal logic and ordinary language, esp the extent to which the former can be held accurately to represent the latter
- photopolymerization — polymerization induced by light.
- popular sovereignty — the doctrine that sovereign power is vested in the people and that those chosen to govern, as trustees of such power, must exercise it in conformity with the general will.
- population genetics — the branch of genetics concerned with the hereditary makeup of populations.
- population pressure — the force exerted by a growing population upon its environment, resulting in dispersal or reduction of the population.
- prismatic telescope — a telescope having an eyepiece at the side or top equipped with a reflecting prism, used for taking sights at steep angles.
- proctosigmoidoscope — sigmoidoscope.
- proctosigmoidoscopy — sigmoidoscopy.
- projective property — a geometric property that is unaltered by projection; a property of relative position, as coincidence or length, but not of magnitude.
- property settlement — an agreement between a divorcing husband and wife covering the division of their assets
- property speculator — a person who takes part in property speculation
- propositional logic — (logic) (or "propositional calculus") A system of symbolic logic using symbols to stand for whole propositions and logical connectives. Propositional logic only considers whether a proposition is true or false. In contrast to predicate logic, it does not consider the internal structure of propositions.
- proto-indo-european — the unattested prehistoric parent language of the Indo-European languages; Indo-European.
- pseudopsychological — of or relating to psychology.
- psychophysiological — of or relating to psychophysiology.
- public-opinion poll — a poll taken by sampling a cross section of the public in an effort to predict election results or to estimate public attitudes on issues.
- pyrophosphoric acid — a crystalline, water-soluble powder, H 4 P 2 O 7 , formed by the union of one molecule of phosphorus pentoxide with two molecules of water.
- radiopharmaceutical — any of a number of radioactive drugs used diagnostically or therapeutically.
- reflux oesophagitis — inflammation of the gullet caused by regurgitation of stomach acids, producing heartburn: may be associated with a hiatus hernia
- sacrifice operative — a euphemistic term for a suicide bomber
- santa rosa de copan — a town in W Honduras: site of extensive Mayan ruins.
- sense of proportion — If someone has a sense of proportion, they know what is really important and what is not.
- shopping facilities — shops or other retail services
- social anthropology — study of human culture
- succession of crops — the continuous cultivation of a crop throughout a season by successive plantings or by the use of varieties with different rates of growth.
- tall poppy syndrome — a tendency to disparage any person who has achieved great prominence or wealth
- telescopic umbrella — an umbrella having parts that telescope
- the buck stops here — the ultimate responsibility lies here
- the open university — (in Britain) a university founded in 1969 for mature students studying by television and radio lectures, correspondence courses, local counselling, and summer schools
- the top of the tree — If you say that someone is at the top of the tree, you mean that they have reached the highest level in their career or profession.
- thiophosphoric acid — an acid derived from phosphoric acid by substituting one or more sulfur atoms for oxygen atoms.
- tie-clip microphone — a small microphone that is clipped to a person's tie
- time sharing option — (operating system) (TSO) System software from IBM that provides time-sharing on an IBM mainframe running in an MVS environment.
- to be a showstopper — to be very impressive; to be sensational
- to pop the question — If you pop the question, you ask someone to marry you.
- trooping the colour — a military ceremony, performed by regiments of the British army and the Commonwealth, in which the regimental colour or flag is marched past ranks of troops