A lot vs. Alot: 9 Grammatical Pitfalls


[bahy-oh] /ˈbaɪ oʊ/ Informal.
noun, plural bios.
a bio control service using praying mantises to reduce the population of garden pests.
1945-50; by shortening; as adj., independent use of bio-, taken as a free form


a combining form meaning “life” occurring in loanwords from Greek (biography); on this model, used in the formation of compound words (bioluminescence).
Also, especially before a vowel, bi-.
combining form of Greek bíos life; akin to Latin vīvus living, Sanskrit jīvas. See quick Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for bio
  • Diverting land from food crops to making bio diesel however efficiently, doesn't seem credible to me.
  • But it is also the home of bio tech advances in agriculture.
  • The barriers to a bio-based fuel supply start way before cellulosic ethanol plants are built and global policy is crafted.
  • Vaporizing sawdust and corn stalks yields a versatile petroleum stand-in called bio-oil.
  • The concept of bio-fuel does potentially make sense if implemented intelligently.
  • Food corn and corn used for bio-fuels are different.
  • Anyways, sensory bio-tech is showing a lot of promise for widespread application.
  • Probably a shift to bio fuels will trigger higher food prices and maybe that will be those bad couple of years.
  • The whole world will acquire better defences against bio-terrorism and large-scale natural epidemics.
  • Finally, land once earmarked for food growth increasingly is being used to develop bio fuel crops.
British Dictionary definitions for bio


noun (pl) bios
short for biography


combining form
indicating or involving life or living organisms: biogenesis, biolysis
indicating a human life or career: biography, biopic
Word Origin
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
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Word Origin and History for bio

short for biography, attested from 1961.


word-forming element, from Greek bio-, comb. form of bios "one's life, course or way of living, lifetime" (as opposed to zoe "animal life, organic life"), from PIE root *gweie- "to live" (cf. Sanskrit jivah "alive, living;" Old English cwic "alive;" Latin vivus "living, alive," vita "life;" Middle Persian zhiwak "alive;" Old Church Slavonic zivo "to live;" Lithuanian gyvas "living, alive;" Old Irish bethu "life," bith "age;" Welsh byd "world"). Equivalent of Latin vita. The correct usage is that in biography, but in modern science it has been extended to mean "organic life."

Online Etymology Dictionary, © 2010 Douglas Harper
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bio in Medicine

bio- or bi-

  1. Life; living organism: biology.

  2. Biology; biological: biophysics.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Slang definitions & phrases for bio



A biography, esp a brief one in a yearbook, theater program, etc: By now Jenny had read my bio in the program ( first form 1950s+, second 1940s+)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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Related Abbreviations for bio


  1. biographical summary
  2. biology


Biotechnology Industry Organization
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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