18-letter words containing d, i, o, p, t
- didot point system — a Continental system of measurement for type, based on a unit of 0.0148 inches (0.3759 mm).
- digital audio tape — a cassette containing magnetic tape used for high-fidelity digital recording or playback of audio. Abbreviation: DAT.
- dimethylsulphoxide — a colourless odourless liquid substance used as a solvent and in medicine as an agent to improve the penetration of drugs applied to the skin. Formula: (CH3)2SO
- diphosphoglycerate — an ester of phosphoric acid and glyceric acid that occurs in the blood and that promotes the release of hemoglobin-bound oxygen.
- diplomatic service — diplomatic corps
- diplomatic shuttle — a series of diplomatic visits to other states made by an official, such as an ambassador or envoy
- disability pension — a pension paid to people who are unable to continue to work because of a disability
- disodium phosphate — sodium phosphate (def 2).
- dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
- display postscript — An extended form of PostScript permitting its interactive use with bitmap displays.
- disproportionality — not in proportion; disproportionate.
- disproportionately — not proportionate; out of proportion, as in size or number.
- disproportionation — the simultaneous oxidation and reduction of a substance reacting with itself, thereby forming two dissimilar molecules, as 2C 2 H 4 →C 2 H 6 +C 2 H 2 .
- dissenting opinion — (in appellate courts) an opinion filed by a judge who disagrees with the majority decision of a case.
- divine inspiration — insight provided by higher power
- doctype decoration — (humour) When a web author adds a doctype declaration but doesn't bother to write valid HTML.
- domestic appliance — a machine used for household tasks, for example, a washing machine, refrigerator, etc.
- dot matrix printer — (hardware, printer) A kind of printer with a vertical column of up to 48 small closely packed needles or "pins" each of which can be individually forced forward to press an ink ribbon against the paper. The print head is repeatedly scanned across the page and different combinations of needles activated at each point. Dot matrix printers are noisy compared to non-impact printers.
- dot-matrix printer — device: prints using matrix dots
- drainpipe trousers — trousers with very narrow legs
- drop in the bucket — a deep, cylindrical vessel, usually of metal, plastic, or wood, with a flat bottom and a semicircular bail, for collecting, carrying, or holding water, sand, fruit, etc.; pail.
- duty-free shopping — the making of duty-free purchases
- east india company — the company chartered by the English government in 1600 to carry on trade in the East Indies: dissolved in 1874.
- eigendecomposition — (linear algebra) The factorization of a matrix into a canonical form, whereby the matrix is represented in terms of its eigenvalues and eigenvectors.
- electrocardiograph — A machine used for electrocardiography.
- executive producer — a producer of a film or television programme who is involved with business or technical issues rather than the technical aspects of film or television production
- fishing expedition — a legal proceeding mainly for the purpose of interrogating an adversary, or of examining his or her property and documents, in order to gain useful information.
- forced perspective — the use of objects or images that are larger or smaller than they should be, to suggest that they are nearer or further away than they really are
- fore-edge painting — a technique of painting a picture on the fore edge of a book, often in such a manner that only when the pages are slightly fanned the picture is revealed.
- forward compatible — forward compatibility
- foundling hospital — an institutional home for foundlings.
- fulminating powder — powder that explodes by percussion.
- funding operations — the conversion of government floating stock or short-term debt into holdings of long-term bonds
- golden opportunity — perfect chance
- heptadecanoic acid — a colourless crystalline water-insoluble carboxylic acid used in organic synthesis. Formula: CH3(CH2)15COOH
- hermaphrodite brig — a two-masted sailing vessel, square-rigged on the foremast and fore-and-aft-rigged on the mainmast.
- high speed connect — (hardware) (HSC) A Hewlett-Packard bus like EISA.
- hydroxytryptamines — Plural form of hydroxytryptamine.
- hyperaldosteronism — aldosteronism.
- hypoparathyroidism — Diminished concentration of parathyroid hormone in the blood, which causes deficiencies of calcium and phosphorus compounds in the blood and results in muscular spasms.
- imploded consonant — a consonant which is pronounced with or by implosion
- indefinite pronoun — a pronoun, as English some, any, somebody, that leaves unspecified the identity of its referent.
- independent school — (in Britain) a school that is neither financed nor controlled by the government or local authorities
- inductive coupling — the coupling between two electric circuits through inductances linked by a common changing magnetic field.
- jump discontinuity — a discontinuity of a function at a point where the function has finite, but unequal, limits as the independent variable approaches the point from the left and from the right. Compare jump (def 52).
- little spotted cat — a small New World tiger cat, Felis tigrinus, ranging from Costa Rica to northern Argentina.
- methylprednisolone — A synthetic glucocorticoid drug, with chemical formula C22H30O5.
- middle paleolithic — See under Paleolithic.
- midstream operator — A midstream operator is a company that gathers, transports, and processes natural gas or oil.
- minority president — (in the US) a president who has been elected by the largest number of votes cast but not by a majority of the electorate