a large jellyfish, Cyanea capillata.
noun 1. the line where land and sea meet. 2. a region bordering a seacoast: the Eastern seaboard. adjective 3. bordering on or adjoining the sea. noun 1. land bordering on the sea; the seashore (as modifier): seaboard towns
noun 1. a high, waterproof wading boot worn for fishing and sailing.
noun 1. Glenn T(heodor) 1912–1999, U.S. chemist: chairman of the Atomic Energy Commission 1961–71; Nobel prize 1951. noun 1. Glenn Theodore. 1912–99, US chemist and nuclear physicist. With E.M. McMillan, he discovered several transuranic elements, including plutonium (1940), curium, and americium (1944), and shared a Nobel prize for chemistry 1951 Seaborg (sē’bôrg’) American chemist who […]
noun, Chemistry, Physics. 1. a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Sg; atomic number: 106. noun 1. a synthetic transuranic element, synthesized and identified in 1974. Symbol: Sg; atomic no: 106 seaborgium (sē-bôr’gē-əm) Symbol Sg A synthetic, radioactive element that is produced by bombarding californium with oxygen ions or bombarding lead […]