18-letter words containing o, m, u
- sodium hyposulfite — sodium thiosulfate.
- sodium polysulfide — a yellow-brown, water-soluble, granular powder, Na 2 S n , used chiefly in the manufacture of sulfur dyes, insecticides, and synthetic rubber.
- sodium tetraborate — borax1 .
- sodium thiocyanate — a white powder or colorless, deliquescent crystals, NaSCN, used chiefly in organic synthesis and in medicine in the treatment of hypertension.
- sodium thiosulfate — a white, crystalline, water-soluble powder, Na 2 S 2 O 3 ⋅5H 2 O, used as a bleach and in photography as a fixing agent.
- sodium-vapour lamp — a type of electric lamp consisting of a glass tube containing neon and sodium vapour at low pressure through which an electric current is passed to give an orange light. They are used in street lighting
- 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 cameroons — German Kamerun. a region in W Africa: a German protectorate 1884–1919; divided in 1919 into British and French mandates.
- spackling compound — spackle
- spectrofluorimeter — an instrument in which the spectrum of secondarily emitted fluorescent light is used to identify chemical compounds.
- spectrofluorometer — an instrument in which the spectrum of secondarily emitted fluorescent light is used to identify chemical compounds.
- spur-of-the-moment — occurring or done without advance preparation or deliberation; extemporaneous; unplanned: a spur-of-the-moment decision.
- 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.
- stirling's formula — a relation that approximates the value of n factorial (n!), expressed as .
- strontium monoxide — a white insoluble solid substance used in making strontium salts and purifying sugar. Formula: SrO
- structural formula — a chemical formula showing the linkage of the atoms in a molecule diagrammatically, as H–O–H.
- subatomic particle — physics:
- subject complement — a word or a group of words, usually functioning as an adjective or noun, that is used in the predicate following a copula and describes or is identified with the subject of the sentence, as sleepy in The travelers became sleepy.
- subsidiary company — a company whose controlling interest is owned by another company.
- sugarloaf mountain — a mountain in SE Brazil in Rio de Janeiro, at the entrance to Guanabara Bay. 1280 feet (390 meters).
- summary proceeding — a mode of trial authorized by statute to be held before a judge without the usual full hearing.
- sun-dried tomatoes — tomatoes that have been dried or preserved by exposure to the sun
- super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
- surveyor's compass — an instrument used by surveyors for measuring azimuths.
- surveyor's measure — a system of units of length used in surveying land, based on the surveyor's chain of 66 feet (20.12 meters) and its 100 links of 7.92 inches (20.12 cm).
- sustaining program — a radio or television program without a commercial sponsor.
- symmetric function — a polynomial in several indeterminates that stays the same under any permutation of the indeterminates.
- tele-communication — Sometimes, telecommunication. (used with a singular verb) the transmission of information, as words, sounds, or images, usually over great distances, in the form of electromagnetic signals, as by telegraph, telephone, radio, or television.
- telecommunications — Sometimes, telecommunication. (used with a singular verb) the transmission of information, as words, sounds, or images, usually over great distances, in the form of electromagnetic signals, as by telegraph, telephone, radio, or television.
- temporal summation — the act or process of summing.
- the black mountain — a mountain range in S Wales, in E Carmarthenshire and W Powys. Highest peak: Carmarthen Van, 802 m (2632 ft)
- the mosque of omar — the mosque in Jerusalem, Israel, built in 691 ad by caliph 'Abd al-Malik: the third most holy place of Islam; stands on the Temple Mount alongside the al-Aqsa mosque
- the mountain state — a nickname referring to West Virginia
- the movie industry — the industry that makes entertainment films or movies
- the uncircumcision — the gentiles
- thermionic current — an electric current produced by the flow of thermions.
- thermoluminescence — phosphorescence produced by the heating of a substance.
- thermonuclear bomb — hydrogen bomb.
- thought experiment — Physics. a demonstration or calculation that is based on the postulates of a theory, as relativity, and that demonstrates or clarifies the consequences of the postulates.
- 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 cut the mustard — If someone does not cut the mustard, their work or their performance is not as good as it should be or as good as it is expected to be.
- to meet your match — If you meet your match, you find that you are competing or fighting against someone who you cannot beat because they are as good as you, or better than you.
- 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.
- treasury of merits — the superabundant store of merits and satisfactions, comprising those of Christ, the Virgin Mary, and the saints.
- tune someone grief — to annoy or harass someone
- two-minute warning — a time-out called by an official to notify both teams that two minutes remain in a half.
- under-compensation — to compensate or pay less than is fair, customary, or expected.
- unfair competition — acts done by a seller to confuse or deceive the public with intent to acquire a larger portion of the market, as by cutting prices below cost, misleading advertising, selling a spurious product under a false identity, etc.