14-letter words containing p, o, t
- appleton layer — the F region of the ionosphere
- apportionments — Plural form of apportionment.
- appreciational — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
- approach light — one of a series of lights installed along the projected centerline of an airport runway to assist a pilot in aligning the aircraft during the approach to landing at night.
- approach stage — the stage of landing when a plane is approaching the runway
- appropriations — Plural form of appropriation.
- approximations — Plural form of approximation.
- approximeeting — the practice of a group of people making indefinite plans to meet and then altering those plans regularly via mobile phones according to changing circumstances
- apsidal motion — the rotation of the major axis of an eccentric orbit in the plane of the orbit.
- arborsculpture — The art and craft technique of growing and shaping tree trunks.
- arctic redpoll — a finch, Carduelis hornemanni, of the family Fringillidae, which breeds in tundra birch forest
- armour-plating — The armour-plating on a vehicle or building is the hard metal covering which is intended to protect it from gunfire and other missiles.
- arms inspector — a person who carries out an arms inspection
- aromatherapist — An aromatherapist is a person who is qualified to practise aromatherapy.
- arteriographic — relating to arteriography
- arthrogryposis — (countable, pathology) The permanent fixation of a joint in a contracted position.
- arthroplasties — Plural form of arthroplasty.
- assault troops — soldiers of the infantry who are specially trained to lead an attack
- assault weapon — any of various automatic and semiautomatic military firearms utilizing an intermediate-power cartridge, designed for individual use. Compare assault rifle.
- assembly point — a designated place where people have been told to wait after evacuating a building in the event of a fire or other emergency
- asthenospermia — (medicine) Loss or reduction in the strength or energy of sperm cells, hence infertility. Not always infertile many are subfertile.
- asthenospermic — (medicine) Characterised by or pertaining to asthenospermia, hence infertile.
- asthenospheric — relating to the asthenosphere
- astigmatoscope — an instrument for determining the presence and severity of astigmatism.
- astigmatoscopy — examination by means of an astigmatoscope.
- astrocompasses — Plural form of astrocompass.
- astrophysicist — An astrophysicist is someone who studies astrophysics.
- asymptotically — of or relating to an asymptote.
- at knife-point — under threat of being stabbed
- at one's peril — If you say that someone does something at their peril, you are warning them that they will probably suffer as a result of doing it.
- atomic physics — the branch of physics concerned with the structure and behaviour of atomic nuclei
- atomic-powered — powered by atomic energy
- attention span — the period of time during which someone's attention is held by something in particular
- autobiographer — a person who writes the story of his or her own life
- autobiographic — marked by or dealing with one's own experiences or life history; of or in the manner of an autobiography: autobiographical material; an autobiographical novel.
- autocoprophagy — the consumption of one's own faeces
- autopilot code — (jargon, humour) Code that was written by a programmer on "auto-pilot" who wasn't really thinking about what they were doing.
- autopolyploidy — having more than two haploid sets of chromosomes that are derived from the same ancestral species.
- autoradiograph — a photograph showing the distribution of a radioactive substance in a specimen. The photographic plate is exposed by radiation from the specimen
- autoresponders — Plural form of autoresponder.
- autotetraploid — an individual or strain whose chromosome complement consists of four copies of a single genome due to doubling of an ancestral chromosome complement
- autotransplant — autograft.
- autotypography — a process in which drawings are executed on gelatin before being impressed on a soft metal plate to allow for printing
- aztec two-step — Montezuma's revenge
- bachelor party — A bachelor party is a party for a man who is getting married very soon, to which only men are invited.
- backstrap loom — a simple horizontal loom, used especially in Central and South America, on which one of two beams holding the warp yarn is attached to a strap that passes across the weaver's back.
- bacteriophages — Plural form of bacteriophage.
- ballast pocket — a depression that is formed beneath the ballast layer by penetration of ballast particles into the subgrade and that tends to collect moisture.
- baltimore chop — a batted ball that takes a high bounce upon hitting the ground on or immediately in front of home plate, often enabling the batter to reach first base safely.
- bancroft prize — one of a group of annual awards for literary achievement in American history and biography: administered by Columbia University.