sélenium
81selenium — se·le·ni·um || sɪ lɪËnɪəm n. nonmetallic chemical element (Chemistry) …
82selenium — [sɪ li:nɪəm] noun the chemical element of atomic number 34, a grey crystalline non metal with semiconducting properties. (Symbol: Se) Origin C19: mod. L., from Gk selēnē moon …
83selenium — noun (U) a poisonous element (1) that is not a metal and is used in some electrical instruments to make them sensitive to light …
84selenium — se·le·ni·um …
85selenium — UK [səˈliːnɪəm] / US [səˈlɪnɪəm] noun [uncountable] chemistry a chemical element that is not a metal and that your body needs in small amounts in order to be healthy …
86selenium — se•le•ni•um [[t]sɪˈli ni əm[/t]] n. chem. nut a nonmetallic element occurring in several allotropic forms and having an electrical resistance that varies under the influence of light Symbol: Se at. wt.: 78.96 at. no.: 34 sp. gr.: (gray) 4.80 at… …
87selenium — /səˈliniəm/ (say suh leeneeuhm) noun a non metallic element chemically resembling sulphur and tellurium, occurring in several allotropic forms (crystalline, amorphous, etc.), and having an electrical resistance which varies under the influence of …
88Isotopes of selenium — Selenium (Se) has six naturally occurring isotopes, five of which are stable: 74Se, 76Se, 77Se, 78Se, and 80Se. The last three also occur as fission products, along with 79Se which has a halflife of 295,000 years, and 82Se which has a very long… …
89Selenium drum — Барабан с селеновым покрытием, селеновый барабан …
90Selenium-binder photoconductive layer — Фотопроводящий слой селена со связующим …