16-letter words containing p, o, t, a
- ophthalmological — Pertaining to ophthalmology.
- ophthalmologists — Plural form of ophthalmologist.
- ophthalmoparesis — (medicine) A partial or complete paralysis of the extraocular muscles which are responsible for eye movements.
- optical activity — the ability of a substance to rotate the plane of polarization of plane-polarized light.
- optical computer — an experimental computer that uses photons rather than electrical impulses to process data a thousand times faster than with conventional integrated circuits.
- optical illusion — something that deceives by producing a false or misleading impression of reality.
- optical rotation — the angle at which the plane of polarized light is rotated when passed through an optically active substance.
- optical scanning — the process of interpreting data in printed, handwritten, bar-code, or other visual form by a device (optical scanner or reader) that scans and identifies the data.
- optical tweezers — a laser device used to study, manipulate, or trap a microscopic object, as a microorganism or cell, with nanometer precision.
- organ transplant — an operation in which an organ is transplanted from a donor
- organoleptically — In an organoleptic manner.
- organophosphates — Plural form of organophosphate.
- orthographically — In an orthographical manner; using proper spelling, capitalization and grammar.
- orthosympathetic — Of or pertaining to the sympathetic component of the autonomic nervous system.
- osculating plane — the plane containing the circle of curvature of a point on a given curve.
- outboard profile — an exterior side elevation of a vessel, showing all deck structures, rigging, fittings, etc.
- over-application — the act of putting to a special use or purpose: the application of common sense to a problem.
- over-expectation — the act or the state of expecting: to wait in expectation.
- over-explanation — the act or process of explaining.
- over-speculation — the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
- overcapitalizing — Present participle of overcapitalize.
- overcompensating — Present participle of overcompensate.
- overcompensation — a pronounced striving to neutralize and conceal a strong but unacceptable character trait by substituting for it an opposite trait.
- overcompensatory — a pronounced striving to neutralize and conceal a strong but unacceptable character trait by substituting for it an opposite trait.
- overcomplicating — Present participle of overcomplicate.
- overexploitation — use or utilization, especially for profit: the exploitation of newly discovered oil fields.
- pacific sturgeon — a dark gray sturgeon, Acipenser transmontanus, inhabiting marine and fresh waters along the northwestern coast of North America, valued as a food and sport fish.
- packing fraction — Physics. a measure of the stability of an atomic nucleus, equal to 10 4 multiplied by the mass defect and divided by the mass number.
- pairs tournament — an event in a sport such as tennis or darts open to pairs of competitors
- palaeolithic man — any of various primitive types of man, such as Neanderthal man and Java man, who lived in the Palaeolithic
- paleoclimatology — the branch of paleogeography dealing with the study of paleoclimates.
- palmerston north — a city in New Zealand, in the S North Island on the Manawatu River. Pop: 78 100 (2004 est)
- palmitoleic acid — a colorless, unsaturated fatty acid, C 1 6 H 3 0 O 2 , occurring in oils and fats of plants and animals.
- palmtop computer — a computer that has a small screen and compressed keyboard and is small enough to be held in the hand, often used as a personal organizer
- palomar mountain — mountain in SW Calif., near San Diego: site of an astronomical observatory: 6,140 ft (1,871 m)
- pantothenic acid — a hydroxy acid, C 9 H 1 7 O 5 N, found in plant and animal tissues, rice, bran, etc., that is part of the B complex of vitamins and is essential for cell growth.
- para-nitrophenol — any compound derived from phenol by the replacement of one or more of its ring hydrogen atoms by the nitro group.
- parallel fortran — (language) (Pfortran) Extensions to Fortran by Ridgway Scott <[email protected]> of Houston University. Pfortran provides a shared memory SIMD model on message passing computers. It was under development in 1994.
- paratuberculosis — Johne's disease.
- parity operation — the mathematical operation of reversing the directions of all three space coordinates. Symbol: P.
- parochialization — a parochial character, spirit, or tendency; excessive narrowness of interests or view; provincialism.
- parole violation — an illegal act or offence that breaches the conditions of a prisoner's parole
- parrot's-feather — a South American water milfoil, Myriophyllum aquaticum, having hairlike pinnate leaves, widely cultivated as an aquarium plant.
- parser generator — A program which takes a formal description of a grammar (e.g. in BNF) and outputs source code for a parser which will recognise valid strings obeying that grammar and perform associated actions. Unix's yacc is a well known example.
- part way through — mid-way; before the end
- partial fraction — one of the fractions into which a given fraction can be resolved, the sum of such simpler fractions being equal to the given fraction: Partial fractions of 5/(x2−x) are 5/(x−1) and −5/x.
- partial function — A function which is not defined for all arguments of its input type. E.g. f(x) = 1/x if x /= 0. The opposite of a total function. In denotational semantics, a partial function f : D -> C may be represented as a total function ft : D' -> lift(C) where D' is a superset of D and ft x = f x if x in D ft x = bottom otherwise where lift(C) = C U bottom. Bottom (LaTeX \perp) denotes "undefined".
- partial ordering — a relation defined on a set, having the properties that each element is in relation to itself, the relation is transitive, and if two elements are in relation to each other, the two elements are equal.
- parts of lindsey — an area in E England constituting a former administrative division of Lincolnshire
- pascal's theorem — the theorem that the lines joining adjacent vertices of a hexagon intersect the same straight line if alternate vertices lie on two intersecting straight lines.