18-letter words containing o, d, i, s, t

song without words — a song which only consists of a tune or melody and does not have any lyrics
sonic depth finder — a sonar instrument that uses echolocation to measure depths under water.
southampton island — an island in N Canada, in the Northwest Territories at the entrance to Hudson Bay. 19,100 sq. mi. (49,470 sq. km).
southern rhodesian — a former name (until 1964) of Zimbabwe (def 1).
squinting modifier — a word or phrase that can modify either the words that precede it or those that follow, as frequently in the sentence Studying frequently is tedious.
stand at attention — military: stand straight
standard deviation — a measure of dispersion in a frequency distribution, equal to the square root of the mean of the squares of the deviations from the arithmetic mean of the distribution.
standard of living — a grade or level of subsistence and comfort in everyday life enjoyed by a community, class, or individual: The well-educated generally have a high standard of living.
standing committee — a permanent committee, as of a legislature, society, etc., intended to consider all matters pertaining to a designated subject.
standoff insulator — a type of insulator that supports an electrical conductor at a distance from other elements or surfaces.
straits of florida — a sea passage between the Florida Keys and Cuba, linking the Atlantic with the Gulf of Mexico
strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
strong derived set — the set of all strong accumulation points of a given set.
strontium monoxide — a white insoluble solid substance used in making strontium salts and purifying sugar. Formula: SrO
student councillor — a student who is a member of a council or body representing the interests of students at a school, university or college
subordinate clause — a clause that modifies the principal clause or some part of it or that serves a noun function in the principal clause, as when she arrived in the sentence I was there when she arrived or that she has arrived in the sentence I doubt that she has arrived.
sun-dried tomatoes — tomatoes that have been dried or preserved by exposure to the sun
supraorbital ridge — browridge.
sutton-in-ashfield — a market town in N central England, in W Nottinghamshire. Pop: 41 951 (2001)
synthetic division — a simplified procedure for dividing a polynomial by a linear polynomial.
tan someone's hide — to convert (a hide) into leather, especially by soaking or steeping in a bath prepared from tanbark or synthetically.
the bird has flown — the person in question has fled or escaped
the damage is done — If you say 'the damage is done', you mean that it is too late now to prevent the harmful effects of something that has already happened.
the encyclopedists — the writers of the French Encyclopedia (1751-72) edited by Diderot and d'Alembert, which contained the advanced ideas of the period
the first sea lord — the senior of the two serving naval officers who sits on the admiralty board of the Ministry of Defence
the hotel industry — the branch of the services industry which provides hotels
the movie industry — the industry that makes entertainment films or movies
thioarsenious acid — any of a group of hypothetical acids, H3AsS3, HAsS2, and H4As2S5, known only in the forms of their salts
thiosulphuric acid — an unstable acid known only in solutions and in the form of its salts. Formula: H2S2O3
thirty-second note — a note having 1/32 of the time value of a whole note; demi-semiquaver.
thirty-second rest — a rest equal in value to a thirty-second note.
thomas alva edison — Thomas Alva [al-vuh] /ˈæl və/ (Show IPA), 1847–1931, U.S. inventor, especially of electrical devices.
to be said for sth — If you say there is a lot to be said for something, you mean you think it has a lot of good qualities or aspects.
to close your mind — If you close your mind to something, you deliberately do not think about it or pay attention to it.
to come unstitched — to go wrong or awry
to cross your mind — If you say that an idea or possibility never crossed your mind, you mean that you did not think of it.
to find one's feet — If you say that someone is finding their feet in a new situation, you mean that they are starting to feel confident and to deal with things successfully.
to get wind of sth — If you get wind of something, you hear about it, especially when someone else did not want you to know about it.
to gird your loins — If you gird your loins, you prepare to do something difficult or dangerous.
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.
toyotomi hideyoshi — Toyotomi [taw-yaw-taw-mee] /ˈtɔ yɔˈtɔ mi/ (Show IPA), 1536–98, Japanese general and statesman: prime minister and dictator of Japan 1585–98.
transit theodolite — a theodolite having a telescope that can be transited.
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.
tristan und isolde — a music drama (composed, 1857–59; première, 1865) by Richard Wagner.
trobriand islander — a native or inhabitant of the Trobriand Islands of Papua New Guinea
tufted loosestrife — a primulaceous plant Naumburgia thyrsiflora
ultrasonic welding — the use of high-energy vibration of ultrasonic frequency to produce a weld between two components which are held in close contact
under the aegis of — guided or protected by

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