18-letter words containing p, t, o, l, e, m
- policeman's helmet — a Himalayan balsaminaceous plant, Impatiens glandulifera, with large purplish-pink flowers, introduced into Britain
- politically-minded — (of a person or group of people) interested in the way power is achieved and used in a country or society (through government, policy-making, etc)
- pollen mother cell — one of the mother cells that produce four microspores by meiosis.
- polystyrene cement — a purpose-made adhesive for fixing rigid polystyrene
- portable equipment — Portable equipment is electrical equipment that can easily be moved from one place to another while in operation or while connected to the supply.
- postmaster general — the executive head of the postal system of a country.
- postmillenarianism — postmillennialism.
- postviral syndrome — debilitating condition occurring as a sequel to viral illness
- potassium chlorate — a white or colorless, crystalline, water-soluble, poisonous solid, KClO 3 , used chiefly as an oxidizing agent in the manufacture of explosives, fireworks, matches, bleaches, and disinfectants.
- potassium chloride — a white or colorless, crystalline, water-soluble solid, KCl, used chiefly in the manufacture of fertilizers and mineral water, and as a source of other potassium compounds.
- potassium fluoride — a white, crystalline, hygroscopic, toxic powder, KF, used chiefly as an insecticide, a disinfectant, and in etching glass.
- potassium sulphate — a soluble substance usually obtained as colourless crystals of the decahydrate: used in making glass and as a fertilizer. Formula: K2SO4
- presumption of law — a presumption based upon a policy of law or a general rule and not upon the facts or evidence in an individual case.
- primate of england — a title of the archbishop of Canterbury.
- psychogalvanometer — a type of galvanometer for detecting and measuring psychogalvanic currents.
- public examination — an examination, such as a GCSE exam, that is set by a central examining board
- pulmonic airstream — a current of lung air set in motion by the respiratory muscles in the production of speech.
- quartz-iodine lamp — a type of tungsten-halogen lamp containing small amounts of iodine and having a quartz envelope, operating at high temperature and producing an intense light for use in car headlamps, etc
- real-time computer — a computer that can process data or information almost immediately
- redevelopment area — an urban area in which all or most of the buildings are demolished and rebuilt
- ribbon development — housing or commercial buildings built along a stretch of road.
- seasonal promotion — Seasonal promotions are items marketed to customers at the appropriate time of year, such as coats in the winter and bathing suits in the summer.
- segmental phonemes — phonemes consisting of sound segments; hence, the vowel, consonant, and semivowel sounds of a language
- self-contemplation — the act or process of thinking about oneself or one's values, beliefs, behavior, etc.
- september holidays — a period of time in September when people do not have to go to school, college or work
- simple enumeration — a procedure for arriving at empirical generalizations by haphazard accumulation of positive instances.
- sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
- slow-motion replay — a showing again in slow motion of a sequence of action, esp of part of a sporting contest immediately after it happens
- small pastern bone — the part of the foot of a horse, cow, etc., between the fetlock and the hoof.
- sodium hyposulfite — sodium thiosulfate.
- spectrocolorimetry — the quantitative measure of colors by spectrophotometry.
- spectrofluorimeter — an instrument in which the spectrum of secondarily emitted fluorescent light is used to identify chemical compounds.
- spectrofluorometer — an instrument in which the spectrum of secondarily emitted fluorescent light is used to identify chemical compounds.
- spectropolarimeter — an instrument for determining the extent to which plane-polarized light of various wavelengths is rotated by certain solutions, consisting of a combination of a spectroscope and a polarimeter.
- spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
- subatomic particle — physics:
- subject complement — a word or a group of words, usually functioning as an adjective or noun, that is used in the predicate following a copula and describes or is identified with the subject of the sentence, as sleepy in The travelers became sleepy.
- super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
- talent competition — a contest in which people compete by showcasing their talents, for example in singing, dancing, acrobatics, etc
- television company — a company that broadcasts programmes by television
- temporal summation — the act or process of summing.
- the bottomless pit — the underworld; hell
- the family compact — the ruling oligarchy in Upper Canada in the early 19th century
- the lords temporal — (in Britain) peers other than bishops in their capacity as members of the House of Lords
- the palmetto state — a nickname for South Carolina
- three-body problem — the problem of calculating the motions of three bodies in space moving under the influence of only their mutual gravitational attraction.
- unit magnetic pole — the unit of magnetic pole strength equal to the strength of a magnetic pole that repels a similar pole with a force of one dyne, the two poles being placed in a vacuum and separated by a distance of one centimeter.
- wattless component — Electricity. reactive component.