Definition of bio in English:


Syllabification: bi·o
Pronunciation: /ˈbīō

noun (plural bios)

  • 1Biology: [as modifier]: he dated a bio major in college
    More example sentences
    • If I wasn't double majoring in bio and chem and getting my butt kicked I might take the class.
    • ‘Ya, the double bio / chem major is intense, but I think it'll be worth it,’ he said quietly, wondering why he was so awkward around this girl.
    • It is telling lies about the state of modern science, misrepresenting the words of your colleagues, and making arguments that a freshman bio major could see through that gets you ridiculed.
  • 2A biography: the latest in a series of unauthorized bios
    More example sentences
    • The first two bios in the series are available: Bo Diddley here, Chuck Berry here.
    • But… well, she's either read my books wrong, or she was so busy trying to translate my bio into a series of how-to tips that she never read them at all.
    • I also have several bios / profiles from some of the writers.


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  • 1Biological: studying the effects of bio treatment
    More example sentences
    • It has the ability to take the chemical, biological incident response force in case of a chem / bio attack.
    • Given the worries about bio / chemical attacks against our troops, it's always seemed prudent to me that we might insert some Special Operations types.
    • And also, Iraq is required very soon to put forth a complete and final declaration of all of its activities related to chem, bio, nuclear and missile activity.
  • 2Biographical: it was excluded from her official bio material
    More example sentences
    • Author agrees to give Publisher the right to use the author's name, likeness, title of book, and bio material for publishing, advertising and promoting the work.
    • More bio material for media and appearances
    • Please provide your Current Contact and Bio Information for the 40th Reunion Book.


mid 20th century: abbreviation.

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Pronunciation: skōSH
a small amount; a little