Reference meaning
Se
Last updated
a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
Related source terms
seleniumatomic number 34
Other meanings
2. noun
the compass point midway between south and east; at 135 degrees
Source and scope
This definition is reproduced from Princeton WordNet 3.0, sense 14654175-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.