Word:

Selenium

Se`le´ni`um
n.1.(Chem.) A nonmetallic element of the sulphur group of atomic number 34, analogous to sulphur in its compounds. It is found in small quantities with sulphur and some sulphur ores, and obtained in the free state as a dark reddish powder or crystalline mass, or as a dark metallic-looking substance. It exhibits under the action of light a remarkable variation in electric conductivity, and is used in certain electric apparatus. Symbol Se. Atomic weight 78.96.
Noun1.selenium - a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable gray metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
Synonyms: atomic number 34, Se
antioxidant, atomic number 34, chemical element, element, fool's gold, iron pyrite, pyrite, Se
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Selenate
Selene
Selene setapinnis
Selene vomer
Selenhydric
Selenic
selenic acid
Selenicereus
Selenicereus grandiflorus
Selenide
Seleniferous
Selenio-
Selenious
Selenipedium
Selenite
Selenitic
-- Selenium --
selenium cell
Seleniuret
Seleniureted
Selenocentric
Selenograph
Selenographer
Selenographic
Selenographic chart
Selenographist
Selenography
selenolatry
Selenology
Selenonium
Seles
Seleucus
Seleucus I
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