bio-: meaning, definition, pronunciation and examples
HighFormal in scientific/technical use; informal when used as a clipped form of 'biography'.
Quick answer
What does “bio-” mean?
A prefix derived from Greek, meaning 'life' or 'living organisms'.
Audio
Pronunciation
Definition
Meaning and Definition
A prefix derived from Greek, meaning 'life' or 'living organisms'.
Used to form words relating to life, living organisms, or biological processes and sciences. Also commonly used as a clipped form of 'biography' in informal contexts.
Dialectal Variation
British vs American Usage
Differences
No significant differences in the use of the prefix. The clipped noun 'bio' (for biography) is slightly more established in US informal usage.
Connotations
The prefix carries neutral, scientific connotations. The noun 'bio' connotes brevity and informality.
Frequency
Equally frequent in technical/scientific registers in both dialects. The noun form is common in both but may appear more in US digital/media contexts (e.g., 'social media bio').
Grammar
How to Use “bio-” in a Sentence
bio- + noun (e.g., biotechnology)bio- + adjective (e.g., biodegradable)bio- as a standalone noun (informal: 'Check my bio')Vocabulary
Collocations
Examples
Examples of “bio-” in a Sentence
verb
British English
- The waste will biodegrade within weeks.
- Researchers aim to bio-engineer drought-resistant crops.
American English
- The packaging is designed to biodegrade quickly.
- Scientists are working to bio-fabricate human tissue.
adverb
British English
- The process occurs biochemically.
- The material breaks down biologically.
American English
- The system functions biomimetically.
- The waste is processed biologically.
Usage
Meaning in Context
Business
Used in sectors like pharmaceuticals, energy ('biofuel'), and agriculture ('biocontrol').
Academic
Ubiquitous in life sciences, medicine, environmental studies, and ethics ('bioethics').
Everyday
Common in terms like 'biodegradable' waste bags or reading a celebrity's 'bio'.
Technical
Precise prefix in terms like 'bioinformatics', 'biometrics', 'biosynthesis'.
Watch out
Common Mistakes When Using “bio-”
- Using 'bio' as a standalone adjective (*'This product is bio') instead of 'organic' or 'biological'.
- Hyphenation inconsistency: 'biodegradable' (usually closed) vs. 'bio-active' (often hyphenated).
FAQ
Frequently Asked Questions
Yes, but informally. It's a clipped form of 'biography', common on social media profiles or speaker introductions.
It depends on the word and style guide. Established terms like 'biology' have no hyphen. Newer or less common combinations often use a hyphen (bio-active), but many become closed over time (biodegradable).
'Bio-' focuses specifically on living organisms and biological processes. 'Eco-' (from 'ecology') has a broader scope, relating to the environment and the interaction between organisms and their habitat.
No. It is a productive prefix, but it should be used to form words conceptually related to life or biology (e.g., bio-warfare, biodata). Using it arbitrarily (e.g., bio-car for an electric car) would be non-standard.
A prefix derived from Greek, meaning 'life' or 'living organisms'.
Bio- is usually formal in scientific/technical use; informal when used as a clipped form of 'biography'. in register.
Bio-: in British English it is pronounced /ˈbaɪəʊ/, and in American English it is pronounced /ˈbaɪoʊ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “A clean bill of bio-health (playful, rare)”
- “It's in my bio (informal, digital context)”
Learning
Memory Aids
Mnemonic
Think of BIOlogy - the study of LIFE. The prefix BIO- always relates to LIFE.
Conceptual Metaphor
LIFE IS A SUBSTANCE (bio-diversity, bio-mass), LIFE IS A FORCE (bio-energy).
Practice
Quiz
In which word does 'bio-' NOT relate to 'life'?