15-letter words containing p, o, s, t, a, d
- radio telescope — a system consisting of an antenna, either parabolic or dipolar, used to gather radio waves emitted by celestial sources and bring them to a receiver placed in the focus.
- reported clause — A reported clause is a subordinate clause that indicates what someone said or thought. For example, in 'She said that she was hungry', 'she was hungry' is a reported clause.
- saturated vapor — a vapor whose temperature and pressure are such that any compression of its volume at constant temperature causes it to condense to liquid at a rate sufficient to maintain a constant pressure.
- seafood platter — a plate of assorted seafood, served in a restaurant
- sodium sulphate — a solid white substance that occurs naturally as thenardite and is usually used as the white anhydrous compound (salt cake) or the white crystalline decahydrate (Glauber's salt) in making glass, detergents, and pulp. Formula: Na2SO4
- sophisticatedly — (of a person, ideas, tastes, manners, etc.) altered by education, experience, etc., so as to be worldly-wise; not naive: a sophisticated young socialite; the sophisticated eye of an experienced journalist.
- sostenuto pedal — a pedal on a grand piano that raises the dampers, allowing the tone to be sustained for those strings struck at the time the pedal is depressed.
- special edition — newspaper, magazine: extra issue
- speed indicator — an instrument for counting the number of revolutions of a gasoline engine.
- sphaerosiderite — a type of siderite
- spheroidization — the conversion of grains into spheroids
- spit and polish — great care in maintaining smart appearance and crisp efficiency: The commander was concerned more with spit and polish than with the company's morale.
- spotted cowbane — a North American water hemlock, Cicuta maculata, of the parsley family, having a purple-mottled stem, white flowers, and deadly poisonous, tuberlike roots.
- spread the word — make others aware
- stamping ground — a habitual or favorite haunt.
- stand-up comedy — telling jokes to an audience
- studio portrait — a photograph of a person taken in a studio
- superordination — Logic. the relation between a universal proposition and a particular proposition of the same quality containing the same terms in the same order.
- sweep the board — (in gambling) to win all the cards or money
- to sow gapeseed — to stare in a gaping manner instead of attending to business
- trading profits — profits made from the buying and selling of goods and services
- transportedness — the quality or state of being carried away with pleasure or rapture
- trapdoor spider — any of various, often large, spiders (esp. family Ctenizidae) that dig a burrow and cover the entrance with a hinged lid like a trapdoor
- undercompensate — to compensate or pay less than is fair, customary, or expected.
- undisappointing — not disappointing
- unsophisticated — not sophisticated; simple; artless.