18-letter words containing m, u, l, t, n
- super giant slalom — a slalom race in which the course is longer and has more widely spaced gates than in a giant slalom.
- 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 full treatment — If you say that someone is given the full treatment, you mean either that they are treated extremely well or that they are treated extremely severely.
- the masurian lakes — a group of lakes in Masuria in NE Poland: scene of Russian defeats by the Germans (1914, 1915) during World War I
- thermoluminescence — phosphorescence produced by the heating of a substance.
- thermonuclear bomb — hydrogen bomb.
- to close your mind — If you close your mind to something, you deliberately do not think about it or pay attention to it.
- unit magnetic pole — the unit of magnetic pole strength equal to the strength of a magnetic pole that repels a similar pole with a force of one dyne, the two poles being placed in a vacuum and separated by a distance of one centimeter.
- victor emmanuel ii — 1820–78, king of Sardinia 1849–78; first king of Italy 1861–78.
- widemouth blindcat — any of several catfishes, as Satan eurystomus (widemouth blindcat) of Texas, that inhabit underground streams and have undeveloped eyes and unpigmented skin.
- wrangell mountains — a mountain range in SE Alaska, extending into the Yukon, Canada. Highest peak: Mount Blackburn, 5037 m (16 523 ft)