24-letter words containing d, i, o, p
- special development area — an area earmarked for special development by the government
- stratified random sample — a random sample of a population in which the population is first divided into distinct subpopulations, or strata, and random samples are then taken separately from each stratum.
- superheterodyne receiver — a radio receiver that combines two radio-frequency signals by heterodyne action, to produce a signal above the audible frequency limit. This signal is amplified and demodulated to give the desired audio-frequency signal
- the occupied territories — the areas of the West Bank, the Gaza Strip, and the Golan Heights occupied by Israel after the 1967 Six-Day War
- the proof of the pudding — If you say the proof of the pudding or the proof of the pudding is in the eating, you mean that something new can only be judged to be good or bad after it has been tried or used.
- to let sleeping dogs lie — If someone tells you to let sleeping dogs lie, they are warning you not to disturb or interfere with a situation, because you are likely to cause trouble and problems.
- to play your cards right — If you say that someone will achieve success if they play their cards right, you mean that they will achieve success if they act skilfully and use the advantages that they have.
- trisodium orthophosphate — a sodium salt of orthophosphoric acid having the formula Na3PO4
- ultra low sulphur diesel — a type of diesel fuel that has a low sulphur content
- yellow-bellied sapsucker — a woodpecker, Sphyrapicus varius, of eastern North America, having a red patch on the forehead and black and white plumage with a pale-yellow abdomen, and feeding on sap from trees.