18-letter words containing p, o, s, t, a, d
- spotted flycatcher — a European woodland songbird, Muscicapa striata, with a greyish-brown streaked plumage: family Muscicapidae (Old World flycatchers)
- supraorbital ridge — browridge.
- temporary hardness — hardness of water due to the presence of magnesium and calcium hydrogencarbonates, which can be precipitated as carbonates by boiling
- the heavens opened — it started pouring with rain
- the lords temporal — (in Britain) peers other than bishops in their capacity as members of the House of Lords
- thiosulphuric acid — an unstable acid known only in solutions and in the form of its salts. Formula: H2S2O3
- to get a bad press — If someone or something gets a bad press, they are criticized, especially in the newspapers, on television, or on radio. If they get a good press, they are praised.
- to pick and choose — If you pick and choose, you carefully choose only things that you really want and reject the others.
- to speak your mind — If you speak your mind, you say firmly and honestly what you think about a situation, even if this may offend or upset people.
- to sweep the board — If someone sweeps the board in a competition or election, they win nearly everything that it is possible to win.
- transporter bridge — a bridge for carrying passengers and vehicles by means of a platform suspended from a trolley.
- triphosphoric acid — the hypothetical acid H 5 P 3 O 10 , known chiefly by its salts.
- under-compensation — to compensate or pay less than is fair, customary, or expected.
- video compact disc — (storage) (VCD) A storage format used for film distribution.
- white-spotted hyla — a type of tree frog (H. leucophyllata) of tropical America
- withdrawal symptom — effects of stopping a drug
- work-study program — a program enabling high-school or college students to combine academic work with actual job experience.