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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:

Six months before the novel’s publication, Erskine had drafted the author bio for the book jacket.

From The Wall Street Journal ● Oct. 1, 2026

Jack Modrzejewski works at LA28, which is organizing the upcoming Olympic games, according to his LinkedIn bio.

From Los Angeles Times ● Sep. 28, 2026

Mayor Richard Riordan, according to his company bio.

From Los Angeles Times ● Sep. 28, 2026

And if you click the link in their bio and use the code GETSTRONG, you can be just like them!

From The Wall Street Journal ● Sep. 12, 2026

You’ll need something when you fail bio because you’re not paying attention.

From "From Twinkle, with Love" by Sandhya Menon

Model integrity and security are a concern if government agencies end up using AIs to explore bio- and cyberweapons 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

“This prototype can be scaled up,” says Peter Peumans, director of bio- and nanoelectronics at imec.

From Nature ● Jul. 17, 2013

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

From Forbes ● Jul. 16, 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

They, too, are using dating apps, subtly hinting at their sexual orientation by including their preferred pronouns in their bios and opening up their profiles to be viewed by the same sex.

From The Wall Street Journal ● Feb. 14, 2026

Take this one between two X accounts, @PercThaGoat and @KillaMinga, that both have Stake tagged in their bios.

From Slate ● Nov. 14, 2024

I always write these really long bios for them in hopes that people will read them when they come in and adopt them quickly.

From Los Angeles Times ● Jul. 19, 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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