Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • The symbol for the element selenium.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Symbol for selenium.

from The Century Dictionary and Cyclopedia

  • An obsolete form of see.
  • A Latin reflexive pronoun, occurring in some phrases used in English, as in per se (compare ampersand), in se, se defendendo.
  • In music, if: occurring in some directive phrases, as se bisegna, if it is necessary.
  • A Latin prefix, meaning ‘apart,’ ‘away,’ occurring in many English words, as in secede, secure, segregate, seclude, select, secret, seduce, separate, sever, etc., and in the form sed- in sedition.
  • In chem., the symbol of selenium.
  • n. An obsolete form of sea.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. 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)
  • n. the compass point midway between south and east; at 135 degrees

Etymologies

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