Noun

• S: (n) emission, emanation (the act of emitting; causing to flow forth)
• S: (n) discharge, emission (a substance that is emitted or released)
• S: (n) emission (the release of electrons from parent atoms)
• S: (n) discharge, emission, expelling (any of several bodily processes by which substances go out of the body) "the discharge of pus"
• S: (n) emission (the occurrence of a flow of water (as from a pipe))