12-letter words containing a, p, t, e, r
- orthopaedist — Alternative spelling of orthopedist.
- orthopedical — (American spelling) Alternative form of orthopaedical.
- orthopterans — Plural form of orthopteran.
- outer planet — any of the four planets with orbits outside the orbit of Mars, namely, the planets Jupiter, Saturn, Uranus, and Neptune.
- outspreading — Present participle of outspread.
- overcapacity — capacity beyond what is normal, allowed, or desirable.
- overemphatic — excessive or undue emphasis.
- overpopulate — to fill with an excessive number of people, straining available resources and facilities: Expanding industry has overpopulated the western suburbs.
- overtime pay — a higher than normal rate of pay, for work done as overtime
- oyster plant — salsify.
- package tour — a planned tour in which one fee is charged for all expenses: offering package tours of the chateau country.
- packed tower — A packed tower is a tall distillation vessel which uses packing.
- packet radio — (communications, radio) The use of packet switched communications protocols in large networks (i.e not wireless LANs or Bluetooth) having wireless links to terminals at least. Packet radio is split into amateur packet radio (AX25) and General Packet Radio Service (GRPS).
- page printer — Computers. a high-speed, high-resolution printer that uses a light source, as a laser beam or electrically charged ions, to print a full page of text or graphics at a time.
- paint bridge — a structure spanning and providing passage over a river, chasm, road, or the like.
- 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.
- pallet truck — a powered truck with a mast, sometimes telescopic, on which slides a carriage which can be raised and lowered hydraulically. The carriage has extended forks which can be passed under a palletized load for stacking or moving to a new position
- pancreatitis — inflammation of the pancreas.
- panel beater — a person who beats out the bodywork of motor vehicles
- panel doctor — a doctor within a given area available for consultation by patients insured under the National Health Insurance Scheme
- panspermatic — relating to panspermia
- pantaloonery — foolery; humorous entertainment
- panty girdle — women's control pants
- paper cutter — any device for cutting or trimming paper, typically a weighted, powered, or spring-hinged blade mounted on or over a ruled board or table on which many sheets of paper may be aligned for cutting at one time.
- paper profit — an unrealized profit due to the appreciation of something owned but not yet sold.
- paper-cutter — any device for cutting or trimming paper, typically a weighted, powered, or spring-hinged blade mounted on or over a ruled board or table on which many sheets of paper may be aligned for cutting at one time.
- paper-weight — a small, heavy object of glass, metal, etc., placed on papers to keep them from scattering.
- papoose-root — the blue cohosh. See under cohosh.
- paracenteses — puncture of the wall of a cavity to drain off fluid.
- paracentesis — puncture of the wall of a cavity to drain off fluid.
- paraesthesia — an abnormal sensation, as prickling, itching, etc.
- paraesthetic — paresthesia.
- paraglossate — having paraglossae
- paraguay tea — maté.
- parallel ata — Parallel Advanced Technology Attachment
- parallel top — a parallel line or plane.
- paramagnetic — a body or substance that, placed in a magnetic field, possesses magnetization in direct proportion to the field strength; a substance in which the magnetic moments of the atoms are not aligned.
- parameterise — to describe (a phenomenon, problem, curve, surface, etc.) by the use of parameters.
- parameterize — to describe (a phenomenon, problem, curve, surface, etc.) by the use of parameters.
- paranthelion — a bright spot in the sky caused by refraction and occurring at an angular distance from the sun of between 90° and 140°
- parasitaemia — the condition of having parasites in the blood
- parasiticide — an agent or preparation that destroys parasites.
- parathormone — a hormone secreted by the parathyroids, important in the control of the calcium-phosphorus balance of the body
- parchmentize — to treat (paper or the like) so that it resembles parchment.
- parent group — a large organization that owns a number of smaller separate commercial or industrial firms
- parent metal — the metal of components that are being welded by a molten filler metal
- parenthesize — to insert (a word, phrase, etc.) as a parenthesis.
- parietal eye — Zoology. a median outgrowth of the diencephalon anterior to the pineal apparatus, having visual adaptations in many anamniotes and lizards.
- parity check — a method for detecting errors in data communications or within a computer system by counting the number of ones or zeros per byte or per word, including a special check bit (parity bit) to see if the value is even or odd.
- parity error — (storage, communications) An error discovered by the inclusion of a parity bit.