Dictionary![]() ![]() bi•oPronunciation: (bī'ō), [key] —n., pl. bi•os, —adj. Informal. —n. 1. biography. 2. biology. —adj. 1. biographical. 2. biological: a bio control service using praying mantises to reduce the population of garden pests. bio-a combining form meaning “life” occurring in loanwords from Greek (biography); on this model, used in the formation of compound words (bioluminescence). Also, esp. before a vowel,bi-. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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