7-letter words containing iu
- thorium — a grayish-white, lustrous, somewhat ductile and malleable, radioactive metallic element present in monazite: used as a source of nuclear energy, as a coating on sun-lamp and vacuum-tube filament coatings, and in alloys. Symbol: Th; atomic weight: 232.038; atomic number: 90; specific gravity: 11.7.
- thulium — a rare-earth metallic element found in the minerals euxenite, gadolinite, etc. Symbol: Tm; atomic weight: 168.934; atomic number: 69; specific gravity: 9.32.
- tritium — an isotope of hydrogen having an atomic weight of three.
- triumph — the act, fact, or condition of being victorious or triumphant; victory; conquest.
- trivium — (during the Middle Ages) the lower division of the seven liberal arts, comprising grammar, rhetoric, and logic.
- tullius — Servius, Servius Tullius.
- uranium — a white, lustrous, radioactive, metallic element, occurring in pitchblende, and having compounds that are used in photography and in coloring glass. The 235 isotope is used in atomic and hydrogen bombs and as a fuel in nuclear reactors. Symbol: U; atomic weight: 238.03; atomic number: 92; specific gravity: 19.07.
- uredium — uredinium.
- vilnius — a republic in N Europe, on the Baltic: an independent state 1918–40; annexed by the Soviet Union 1940; regained independence 1991. 25,174 sq. mi. (65,200 sq. km). Capital: Vilnius.
- wickiup — (in Nevada, Arizona, etc.) an American Indian hut made of brushwood or covered with mats.
- wikiups — Plural form of wikiup.
- yttrium — a rare trivalent metallic element, found in gadolinite and other minerals. Symbol: Y; atomic weight: 88.905; atomic number: 39; specific gravity: 4.47.
- ziffius — a type of sea monster
- zoarium — a collection of distinct, individual zooids that make up a compound or colonial organism.