[ bahy-oh ]
See synonyms for bio on
noun,plural bi·os.
  1. biological: a bio control service using praying mantises to reduce the population of garden pests.

Origin of bio

1945–50; by shortening; as adj., independent use of bio-, taken as a free form

Words Nearby bio

Other definitions for bio- (2 of 2)


  1. a combining form meaning “life” occurring in loanwords from Greek (biography); on this model, used in the formation of compound words (bioluminescence).

Origin of bio-

Combining form of Greek bíos life; akin to Latin vīvus living, Sanskrit jīvas.See quick
  • Also especially before a vowel, bi-. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use bio in a sentence

British Dictionary definitions for bio (1 of 2)


/ (ˈbaɪəʊ) /

nounplural bios
  1. short for biography

British Dictionary definitions for bio- (2 of 2)


combining form
  1. indicating or involving life or living organisms: biogenesis; biolysis

  2. indicating a human life or career: biography; biopic

Origin of bio-

from Greek bios life

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012