18-letter words containing a, l, o, p
- calliper compasses — an instrument for measuring internal or external dimensions, consisting of two steel legs hinged together
- cape breton island — an island off SE Canada, in NE Nova Scotia, separated from the mainland by the Strait of Canso: its easternmost point is Cape Breton. Pop: 132 298 (2006). Area: 10 280 sq km (3970 sq miles)
- capital allowances — the money spent by a company on fixed assets which can be taken off the profits of the company before tax is imposed
- career development — a progression through a series of jobs, each with more responsibility and a higher income than the last
- castration complex — an unconscious fear of having one's genitals removed, as a punishment for wishing to have sex with a parent
- cellular telephone — a mobile phone
- central projection — a projection of one plane onto a second plane such that a point on the first plane and its image on the second plane lie on a straight line through a fixed point not on either plane.
- chagos archipelago — group of islands in the Indian Ocean 1,180 mi (1,899 km) northeast of Mauritius, comprising the British Indian Ocean Territory: chief island, Diego Garcia
- checkpoint charlie — a crossing between East and West Berlin during the Cold War
- chemical potential — a thermodynamic function of a substance in a system that is the partial differential of the Gibbs function of the system with respect to the number of moles of the substance
- chloroacetophenone — a white, crystalline, water-insoluble, poisonous solid, C 8 H 7 ClO, used in solution as a tear gas. Abbreviation: CN.
- chromolithographer — One engaged in chromolithography.
- chromolithographic — Pertaining to, or made by, chromolithography.
- claustrophobically — In a claustrophobic way.
- clean up one's act — to start to behave in a responsible manner
- cleopatra's needle — either of two Egyptian obelisks, originally set up at Heliopolis about 1500 bc: one was moved to the Thames Embankment, London, in 1878, the other to Central Park, New York, in 1880
- clinical pathology — the branch of pathology dealing with the study of disease and disease processes by means of chemical, microscopic, and serologic examinations.
- closed corporation — a corporation the stock of which is owned by a small number of persons and is rarely traded on the open market
- closed scholarship — a scholarship for which only certain people, such as those from a particular school or with a particular surname, are eligible
- cobalt violet deep — a medium to strong purple color.
- cock-a-leekie soup — a soup made from a fowl boiled with leeks
- color transparency — a positive color image photographically produced on transparent film or glass and viewed by transmitted light, usually by projection.
- colour photography — the art or process of taking and developing photographs in colour
- colour temperature — the temperature of a black-body radiator at which it would emit radiation of the same chromaticity as the light under consideration
- community hospital — (in the US) a local hospital
- companion planting — the cultivation of different types of plants in close proximity so as to benefit each other, as planting a deer-repellent plant in a flower garden.
- compartmentalizing — Present participle of compartmentalize.
- compassionlessness — The quality, state, or condition of being compassionless; uncompassion.
- complementarianism — The doctrine that genders in a society should have complementary roles.
- complementary base — either of the nucleotide bases linked by a hydrogen bond on opposite strands of DNA or double-stranded RNA: guanine is the complementary base of cytosine, and adenine is the complementary base of thymine in DNA and of uracil in RNA.
- complementary gene — one of a pair of genes, each from different loci, that together are required for the expression of a certain characteristic
- complexity measure — (algorithm) A quantity describing the complexity of a computation.
- compliance officer — a specialist, usually a lawyer, employed by a financial group operating in a variety of fields and for multiple clients to ensure that no conflict of interest arises and that all obligations and regulations are complied with
- conceptual realism — the doctrine that universals have real and independent existence.
- conceptualisations — Plural form of conceptualisation.
- conceptualizations — Plural form of conceptualization.
- controllable-pitch — (of a marine or aircraft propeller) having blades whose pitch can be changed during navigation or flight; variable-pitch.
- corpuscular theory — the theory, originally proposed by Newton, and revived with the development of the quantum theory, that light consists of a stream of particles
- coupling capacitor — A coupling capacitor is a capacitor that is used to transmit an alternating current signal from one node to another.
- cranial osteopathy — osteopathy that focuses on the cranium and the spine
- criminal profiling — the analysis of a person's psychological and behavioural characteristics, so as to assess whether they are likely to have committed a crime under investigation
- cross-disciplinary — linking two or more fields of study
- crystal microphone — a microphone that uses a piezoelectric crystal to convert sound energy into electrical energy
- cyclopean concrete — concrete containing stones larger than 6 inches (15 cm).
- decachlorobiphenyl — (organic compound) The fully chlorinated polychlorinated biphenyl containing ten chlorine atoms.
- decompartmentalize — to remove excessive compartmentalization from (an organization)
- departmental store — a department store.
- departure platform — a raised area at a railway station from which passengers can board trains prior to their departing
- depository library — a library designated by law to receive without charge all or a selection of the official publications of a government.
- desalination plant — a factory where salt is removed from salt water in order to make the water suitable for drinking and irrigation