18-letter words containing k, e, i, r, t, s
- 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
- thorfinn karlsefni — 980–after 1007, Icelandic navigator, explorer, and leader of early colonizing expedition to Vinland, in North America.
- timber rattlesnake — a rattlesnake, Crotalus horridus horridus, of the eastern U.S., usually having the body marked with dark crossbands.
- 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.
- transmission brake — A transmission brake is a brake that operates on the transmission system of a vehicle rather than directly on the wheels.
- treaty of rijswijk — a treaty signed at Rijswijk in the Netherlands in 1697, ending the War of the Grand Alliance
- up to one's tricks — If you say that someone is up to their tricks or up to their old tricks, you disapprove of them because they are behaving in the dishonest or deceitful way in which they typically behave.
- virginia snakeroot — any of various plants whose roots have been regarded as a remedy for snakebites, as the herb Aristolochia serpentaria (Virginia snakeroot) having a medicinal rhizome and rootlets, and the white-flowered Polygala senega (Seneca snakeroot) having a medicinal root.
- water stick insect — a slender sticklike flightless water bug, Ranatra linearis, that is predatory on small creatures such as water fleas
- watson-crick model — a widely accepted model for the three-dimensional structure of DNA, featuring a double-helix configuration for the molecule's two hydrogen-bonded complementary polynucleotide strands.
- westinghouse brake — a railroad air brake operated by compressed air.
- whittaker chambers — Robert, 1802–71, Scottish publisher and editor.
- work out the kinks — If someone works out the kinks in a situation, they resolve the problems associated with it.
- working hypothesis — See under hypothesis (def 1).