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

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
super middleweight — a boxer weighing up to 168 pounds (75.6 kg), between middleweight and light heavyweight.
supraorbital ridge — browridge.
sutton-in-ashfield — a market town in N central England, in W Nottinghamshire. Pop: 41 951 (2001)
swedish gymnastics — a system of passive and active exercising of muscles and joints
swim with the tide — to conform to prevailing opinion
synthetic division — a simplified procedure for dividing a polynomial by a linear polynomial.
take sth in stride — If you take a problem or difficulty in stride, you deal with it calmly and easily.
tan someone's hide — to convert (a hide) into leather, especially by soaking or steeping in a bath prepared from tanbark or synthetically.
tardive dyskinesia — a disorder characterized by restlessness and involuntary rolling of the tongue or twitching of the face, trunk, or limbs, usually occurring as a complication of long-term therapy with antipsychotic drugs.
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 dismal science — a name for economics coined by Thomas Carlyle
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 middle passage — the journey across the Atlantic Ocean from the W coast of Africa to the Caribbean: the longest part of the journey of the slave ships sailing to the Caribbean or the Americas
the movie industry — the industry that makes entertainment films or movies
the-master-builder — a play (1892) by Ibsen.
therese de lisieux — Saint (Marie Françoise Thérèse Martin"the Little Flower") 1873–97, French Carmelite nun.
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.
threatened species — a species likely, in the near future, to become an endangered species within all or much of its range.
thrills and spills — If you refer to thrills and spills, you are referring to an experience which is exciting and full of surprises.
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
under-compensation — to compensate or pay less than is fair, customary, or expected.

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