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

bio

1 American  
[bahy-oh] / ˈbaɪ oʊ /

noun

  • bios
    plural
  1. biography.

  2. biology.


adjective

  1. biographical.

  2. biological.

    a bio control service using praying mantises to reduce the population of garden pests.

bio- 2 American  
  1. a combining form meaning “life” occurring in loanwords from Greek (biography ); on this model, used in the formation of compound words (bioluminescence ).


bio- 1 British  

combining form

  1. indicating or involving life or living organisms

    biogenesis

    biolysis

  2. indicating a human life or career

    biography

    biopic

"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

bio 2 British  
/ ˈbaɪəʊ /

noun

  1. short for biography

"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

Usage

What does bio- mean? The combining form bio- is used like a prefix meaning “life.” It is often used in scientific terms, especially in biology. The form bio- comes from Greek bíos, meaning “life.” The Latin cognate of bíos is vīta, “life,” which is the source of words such as vital. Find out more at our entry for vital. What are variants of bio-?When combined with words or word elements that begin with a vowel, bio- becomes bi-, as in biome. Want to know more? Read our Words That Use article for bi-.

Other Word Forms

Noun Inflected Forms

Etymology

Origin of bio1

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

Origin of bio-2

Combining form of Greek bíos life; akin to Latin vīvus living, Sanskrit jīvas. See quick

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Jack Modrzejewski worked on the state and local affairs teams at LA28, supporting government relations and stakeholder engagement in preparation for the 2028 Olympic and Paralympic Games, according to his LinkedIn bio.

From Los Angeles Times ● Sep. 28, 2026

At the event, her bio read: “former trader, current underemployed felon.”

From The Wall Street Journal ● Sep. 27, 2026

Nature's SAFE, described as a "bio bank", has now stored biological samples from 400 species, some of which are critically endangered or extinct in the wild.

From BBC ● Sep. 14, 2026

“Just a girl on a healing journey,” her bio states.

From Los Angeles Times ● Jul. 24, 2026

I walked into bio the next day, prepared to make the herculean effort to be an aloof, boring lab partner yet again, when the whole thing finally just fell apart.

From "A Very Large Expanse of Sea" by Tahereh Mafi

It’s a concern, for instance, if government agencies decide to use AIs to explore bio- and cyber-weapons tech.

From Seattle Times ● May 23, 2024

Regulations that rely on static lists struggle to keep pace with fields as fast-moving as bio- and cybersecurity.

From Slate ● Mar. 17, 2017

Then, after revealing his fear of bio- or nuclear terrorism, he went on to talk about technology in education. 

From Forbes ● Jul. 16, 2013

The group plans to open an institute for bio- and neuroengineering in collaboration with the Swiss Federal Institute of Technology in Lausanne and the University of Geneva.

From Nature ● May 29, 2013

But in our own days schoolmasters see the advantage of relying solely on the free play of tendencies and bio- psychological laws.

From Criminal Sociology by Enrico Ferri

You can learn more and vote here, plus read some delightful bios on the bears in the running or peruse its hall of champions.

From Salon ● Sep. 26, 2026

Sometimes, those bios slightly vary in their syntax or have been translated into different languages, but they tend to remain consistent in details like song and city names.

From Slate ● Aug. 28, 2026

Another 16% reported no credentials in their bios.

From The Wall Street Journal ● May 7, 2026

Here are four names and their Cliff’s Notes bios to get you started.

From Seattle Times ● Feb. 28, 2024

“Now, everyone, please remain in your seats. We’ll get this panel going shortly, and we have some pretty incredible guests,” he began, before reciting the bios of the three speakers from memory, grinning wide.

From "Night Owls" by A.R. Vishny

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