15-letter words containing p, a, t, h
- chemopsychiatry — the study and application of chemical substances in psychiatry
- chile saltpeter — sodium nitrate, esp. as found naturally in Chile and Peru
- chile saltpetre — a naturally occurring form of sodium nitrate: a soluble white or colourless mineral occurring in arid regions, esp in Chile and Peru
- chimney-pot hat — a high silk hat; top hat.
- christadelphian — a member of a Christian millenarian sect founded in the US about 1848, holding that only the just will enter eternal life, that the wicked will be annihilated, and that the ignorant, the unconverted, and infants will not be raised from the dead
- christmas party — a party organized before Christmas, usually by a firm or organization
- chromatographer — A person skilled in chromatography or who operates a chromatograph.
- chromatographic — (analytical chemistry) Of or pertaining to chromatography.
- chromium-plated — having been plated with chromium
- chryse planitia — a plain on Mars, the landing site of the Viking I spacecraft.
- cinematographed — a motion-picture projector.
- cinematographer — A cinematographer is a person who decides what filming techniques should be used during the shooting of a film.
- cinematographic — a motion-picture projector.
- claustrophobics — Plural form of claustrophobic.
- compotationship — the state of being a compotator or drinking companion
- computer-phobia — a person who distrusts or is intimidated by computers.
- connected graph — (mathematics) A graph such that there is a path between any pair of nodes (via zero or more other nodes). Thus if we start from any node and visit all nodes connected to it by a single edge, then all nodes connected to any of them, and so on, then we will eventually have visited every node in the connected graph.
- conservatorship — the legal status of a person appointed by a court to protect the interests of someone, such as a child, who is unable to manage his or her own affairs
- copper sulphate — a copper salt found naturally as chalcanthite and made by the action of sulphuric acid on copper oxide. It usually exists as blue crystals of the pentahydrate that form a white anhydrous powder when heated: used as a mordant, in electroplating, and in plant sprays. Formula: CuSO4
- corn-root aphid — an aphid, Anuraphis maidiradicis, that lives as a symbiont in colonies of cornfield ants and feeds on the roots of corn: an agricultural pest.
- counterpurchase — barter, especially of products or materials between international companies or importers and exporters.
- coup de theatre — a dramatic turn of events, esp in a play
- couples therapy — a counseling procedure that attempts to improve the adaptation and adjustment of two people who form a conjugal unit.
- craftswomanship — The body of skills, techniques, and expertise of (a) feminine craft(s).
- crescent-shaped — having the shape of a crescent
- cryptographical — the science or study of the techniques of secret writing, especially code and cipher systems, methods, and the like. Compare cryptanalysis (def 2).
- crystallography — the science concerned with the formation, properties, and structure of crystals
- cushion capital — a capital, used in Byzantine, Romanesque, and Norman architecture, in the form of a bowl with a square top
- cytotrophoblast — the thickened, inner part of the mammalian placenta nearest to the fetus, covering the chorion during early pregnancy
- dadchelor party — a party primarily attended by men and held to honour and present gifts to a prospective father
- decipherability — to make out the meaning of (poor or partially obliterated writing, etc.): to decipher a hastily scribbled note.
- deep-etch plate — an offset printing plate with an intaglio image filled with a substance that attracts ink to make it planographic.
- delta hepatitis — a severe form of hepatitis caused by an incomplete virus (delta virus) that links to the hepatitis B virus for its replication.
- dephlogisticate — to reduce or remove inflammation from
- dephosphorylate — to remove a phosphate group from (an organic compound)
- dermatoglyphics — the lines forming a skin pattern, esp on the palms of the hands and soles of the feet
- dermatographism — a condition in which touching or lightly scratching the skin causes raised, reddish marks.
- dermatophytosis — a fungal infection of the skin, esp the feet
- developing bath — an amount of photographic developer into which photographic film or paper is inserted
- diaheliotropism — the tendency among plants to respond to the light of the sun by orienting their leaves perpendicular to the sun's rays, such that the upper surface of the leaves receives maximum light
- diaphototropism — growth of a plant or plant part in a direction transverse to that of the light
- diastrophically — in a diastrophic fashion
- draughtproofing — Present participle of draughtproof.
- draughtsmanship — (British) alternative spelling of draftsmanship.
- dutchman's-pipe — a climbing vine, Aristolochia durior, of the birthwort family, having large, heart-shaped leaves and brownish-purple flowers of a curved form suggesting a tobacco pipe.
- dystrophication — the process by which a body of water becomes dystrophic.
- edriophthalmian — edriophthalmous
- edriophthalmous — (of certain crustaceans) having stalkless eyes
- electromyograph — A device used in electromyography to generate electromyograms.
- elephant's-foot — a monocotyledonous plant, Testudinaria elephantipes, of southern Africa, with a very large starchy tuberous stem, covered in corky scales: family Dioscoreaceae