en·vi·ron (ěn-vī'rən, -vī'ərn) tr.v. en·vi·roned, en·vi·ron·ing, en·vi·rons To encircle; surround. See Synonyms at surround. [Middle English envirounen, from Old French environner, from environ, round about : en-, in; see en-1 + viron, circle (from virer, to turn; see veer1).] |