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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:

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

From Los Angeles Times Jul. 24, 2026

"Kindness is cool," says the Instagram bio of 32-year-old Dereniowski, whose videos often involve him doing random acts of kindness for strangers.

From BBC Jul. 6, 2026

“The bio concerns are not there,” he said.

From Los Angeles Times Jun. 21, 2026

Bottle bio: Another Rías Baixas Albariño, this comes from Galicia, Spain, and has flavors of white peach, citrus peel, chamomile, wet stone and sea spray.

From The Wall Street Journal Jun. 6, 2026

Throughout bio, each time Ms. Park turned to the blackboard, I read the missing persons report from my phone.

From "Turtles All the Way Down" by John Green

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

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

About a third said they preferred bios that included the term.

From Los Angeles Times Feb. 13, 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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