16-letter words containing o, p, t, i, s
- accordion pleats — tiny knife pleats
- achromatic prism — a system of two or more prisms of different substances that deflects but does not disperse a beam of light.
- acid house party — a professionally organized party for young people, with Acid House music, sometimes held in a field or disused building
- acoustic coupler — a device converting computer-data signals into acoustic form for transmission down a telephone line, through the handset microphone
- acoustic torpedo — a torpedo guided by sound that either emanates from the target or is emitted by the torpedo and bounces off the target.
- acroparaesthesia — a persistent sensation of numbness and tingling in the hands and feet
- actinopterygians — Plural form of actinopterygian.
- active transport — a process by which molecules are enabled to pass across a membrane from a region in which they are in a low concentration to one of high concentration; this requires the expenditure of energy in metabolism and is assisted by carrier proteins, commonly referred to as pumps
- additive process — a photographic process in which the desired colours are produced by adding together appropriate proportions of three primary colours
- aeolian deposits — sediments, such as loess, made up of windblown grains of sand or dust
- aerotherapeutics — the treatment of disease by the use of air, esp. by exposing patients to changes in atmospheric pressure
- ancestor worship — (in certain societies) the veneration of ancestors whose spirits are frequently held to possess the power to influence the affairs of the living.
- anopisthographic — a manuscript, parchment, or book having writing on only one side of the leaves.
- anterioposterior — Alternative form of anteroposterior.
- anthropocentrism — an anthropocentric theory or view.
- anthropomorphise — Non-Oxford British standard spelling of anthropomorphize.
- anthropomorphism — Anthropomorphism is the idea that an animal, a god, or an object has feelings or characteristics like those of a human being.
- anthropomorphist — One who anthropomorphizes.
- anthropophagites — Plural form of anthropophagite.
- anthroposemiotic — Of or pertaining to anthroposemiotics.
- anthroposophical — of or relating to anthroposophy
- anti-aphrodisiac — Also, aphrodisiacal [af-ruh-duh-zahy-uh-kuh l, -sahy-] /ˌæf rə dəˈzaɪ ə kəl, -ˈsaɪ-/ (Show IPA). arousing sexual desire.
- anti-progressive — favoring or advocating progress, change, improvement, or reform, as opposed to wishing to maintain things as they are, especially in political matters: a progressive mayor.
- antihypertension — Pathology. elevation of the blood pressure, especially the diastolic pressure. an arterial disease characterized by this condition.
- antiparkinsonian — An antiparkinsonian is an agent used in the treatment of Parkinson's disease.
- antiphospholipid — (medicine) Counteracting phospholipids; applied to Hughes syndrome.
- apostolic church — the Christian church as founded by the apostles.
- appraisal method — a method used for the appraisal of an employee
- arthroscopically — By means of arthroscopy.
- ascidian tadpole — the free-swimming larva of an ascidian, having a tadpole-like tail containing the notochord and nerve cord
- asymptomatically — showing no evidence of disease.
- atmospheric tide — a movement of atmospheric masses caused by the gravitational attraction of the sun and moon and by daily solar heating.
- atomic physicist — a scientist specializing in atomic physics
- auditory aphasia — aphasia in which there is no comprehension of spoken words; word deafness.
- australopithecus — an extinct genus of small-brained,large-toothed bipedal hominids that lived in Africa between one and four million years ago.
- automatic pistol — a type of pistol having a mechanism that throws out the empty shell, puts in a new one, and prepares the pistol to be fired again.
- autostereoscopic — Of or pertaining to autostereoscopy.
- aversion therapy — a method of suppressing an undesirable habit, such as excessive smoking, by causing the subject to associate an unpleasant effect, such as an electric shock or nausea, with the habit
- bastard pointing — an imitation of tuck pointing, having a fillet made from the mortar of the joint.
- batch processing — manufacturing products or treating materials in batches, by passing the output of one process to subsequent processes
- beside the point — If you say that something is beside the point, you mean that it is not relevant to the subject that you are discussing.
- bicapitalisation — The act said to have been performed on trademarks (such as PostScript, NeXT, NeWS, VisiCalc, FrameMaker, TK!solver, EasyWriter) that have been raised above the ruck of common coinage by nonstandard capitalisation. Too many marketroid types think this sort of thing is really cute, even the 2,317th time they do it. Compare studlycaps.
- bird's-nest soup — a rich spicy Chinese soup made from the outer part of the nests of SE Asian swifts of the genus Collocalia
- boatswain's pipe — a whistle used formerly to give orders on board ship
- boston cream pie — a cake of two layers with icing and a creamy filling
- boundary dispute — dispute between neighbours about the boundary between their properties
- branchiopneustic — breathing by means of gills, as certain aquatic insect larvae.
- bristlecone pine — a coniferous tree, Pinus aristata, of the western US, bearing cones with bristle-like prickles: one of the longest-lived trees, useful in radiocarbon dating
- brood parasitism — a type of parasitism in which a bird (brood parasite), as a cowbird or European cuckoo, lays and abandons its eggs in the nest of another species
- button one's lip — to stop talking: often imperative
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