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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:

Mayor Richard Riordan, according to his company bio.

From Los Angeles Times ● Sep. 28, 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

Others pointed to ad disclosures in the bio section of their social-media accounts or to the fact the accounts are technically “brand-owned” assets, according to their contracts.

From The Wall Street Journal ● Sep. 20, 2026

One test involved users of tech-industry forum Hacker News who had posted their LinkedIn profile in their bio.

From The Wall Street Journal ● Sep. 8, 2026

He didn’t know anything about his bio dad, other than his last name and the fact that Joaquin only had to look in the mirror to know that his mysterious father hadn’t been white.

From "Far from the Tree" by Robin Benway

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

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

The technical inquiry into these bio- psychical characteristics is the special work of this new science of criminal anthropology.

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

Kory Kantenga, LinkedIn’s head of economics for the Americas, tells me recruiters increasingly filter job candidates by the skills listed in their bios.

From The Wall Street Journal ● May 28, 2026

Sure, there are arguments for using A.I. to write bios.

From Slate ● Jan. 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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