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Words That Start With BIO

115 words Words by letter Checked 9 Oct 2026

Here are 115 words that start with bio, from everyday words to rare ones that are still valid in word games. Common words come first with a short meaning, then the words are grouped by length, which helps with Wordle and crossword clues.

As a prefix, bio means "life" or "living things", as in biology and biography.

Words starting with bio
115
Most used
biological
Shortest
bios
5 letter words
2

Common words that start with bio

#WordMeaningLetters
1biologicalpertaining to biology or to life and living things10
2biologythe science that studies living organisms7
3biographyan account of the series of events making up a person's life9
4biodiversitythe diversity of plant and animal life in a particular habitat (or in the world as a whole)12
5biomedicalrelating to the activities and applications of science to clinical medicine10
6biotechnologythe branch of molecular biology that studies the use of microorganisms to perform specific industrial...13
7biographicalof or relating to or being biography12
8biomassplant materials and animal waste used as fuel7
9biochemistrythe organic chemistry of compounds and processes occurring in organisms12
10biologist(biology) a scientist who studies living organisms9
11biopsyexamination of tissues or liquids from the living body to determine the existence or cause of a disease6
12biologists(biology) a scientist who studies living organisms10
13biographiesan account of the series of events making up a person's life11
14biologicallywith respect to biology12
15biochemicalof or relating to biochemistry; involving chemical processes in living organisms11
16biotechthe branch of molecular biology that studies the use of microorganisms to perform specific industrial...7
17biographersomeone who writes an account of a person's life10
18bionicof or relating to bionics6
19biospherethe regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist9
20biodegradablecapable of being decomposed by e.g. bacteria13
21biosynthesisproduction of a chemical compound by a living organism12
22biomea major biotic community characterized by the dominant forms of plant life and the prevailing climate5
23biometricsa branch of biology that studies biological phenomena and observations by means of statistical analysis10
24biopsiesexamination of tissues or liquids from the living body to determine the existence or cause of a disease8
25biohazardhazard to humans or the environment resulting from biological agents or conditions9
26bioticof or relating to living organisms6
27bioethicsthe branch of ethics that studies moral values in the biomedical sciences9
28biologicpertaining to biology or to life and living things8
29biophysicsphysics as applied to biological problems10
30biosciencesany of the branches of natural science dealing with the structure and behavior of living organisms11
31bioengineeringthe branch of engineering science in which biological science is used to study the relation between workers...14
32biographerssomeone who writes an account of a person's life11
33biotina B vitamin that aids in body growth6
34biochemistsomeone with special training in biochemistry10
35bioscienceany of the branches of natural science dealing with the structure and behavior of living organisms10
36biotaall the plant and animal life of a particular region5
37biogenesisproduction of a chemical compound by a living organism10
38biofeedbacka training program in which a person is given information about physiological processes (heart rate or blood...11
39biomesa major biotic community characterized by the dominant forms of plant life and the prevailing climate6
40biostatisticsa branch of biology that studies biological phenomena and observations by means of statistical analysis13
41biomedicinethe branch of medical science that applies biological and physiological principles to clinical practice11
42biogeographydealing with the geographical distribution of animals and plants12
43biosyntheticof or relating to biosynthesis12
44biosafetysafety from exposure to infectious agents9
45bioluminescent(of living organisms) emitting light14
46bioluminescenceluminescence produced by physiological processes (as in the firefly)15
47biogenicproduced by living organisms or biological processes8
48bionicsapplication of biological principles to the study and design of engineering systems (especially electronic...7
49biochemistssomeone with special training in biochemistry11
50biotitedark brown to black mica found in igneous and metamorphic rock7

4 letter words that start with bio

  • bios

5 letter words that start with bio

  • biome
  • biota

6 letter words that start with bio

  • biopsy
  • biopic
  • bionic
  • biotic
  • biogas
  • biotin
  • biomes
  • biogen

7 letter words that start with bio

  • biology
  • biomass
  • biotech
  • bionics
  • biotite
  • biopics
  • biotics
  • biocide
  • biotope

8 letter words that start with bio

  • biopsies
  • biologic
  • biogenic
  • biopsied
  • bioassay
  • biocides
  • biotopes

9 letter words that start with bio

  • biography
  • biologist
  • biometric
  • biosphere
  • biohazard
  • bioethics
  • biologics
  • bioactive
  • biosafety
  • biosensor
  • bionomics
  • bioassays
  • biorhythm

10 letter words that start with bio

  • biological
  • biomedical
  • biologists
  • biographer
  • biometrics
  • biophysics
  • biochemist
  • bioscience
  • biogenesis
  • biosensors
  • bioreactor
  • biodynamic
  • biographic
  • biocontrol
  • biopolymer
  • bioethical
  • biodegrade
  • biogenetic
  • biomorphic

11 letter words that start with bio

  • biographies
  • biochemical
  • biosciences
  • biographers
  • biophysical
  • biofeedback
  • biomedicine
  • biochemists
  • biologicals
  • bioreactors
  • biopolymers
  • biomaterial
  • bioelectric
  • bioactivity
  • bioethicist
  • bioengineer
  • biomolecule

12 letter words that start with bio

  • biodiversity
  • biographical
  • biochemistry
  • biologically
  • biosynthesis
  • biomechanics
  • biomaterials
  • biogeography
  • biomolecules
  • biomolecular
  • biosynthetic
  • bioavailable
  • biochemicals
  • bioengineers

Filter all 115 words that start with bio

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    Questions people ask

    How many words start with bio?

    This list has 115 words starting with bio, all from a standard word-game dictionary and all seen in real English text.

    What are common words that start with bio?

    biological, biology, biography, biodiversity, biomedical, biotechnology, biographical, biomass.

    What 5 letter words start with bio?

    biome, biota.

    What does the prefix bio mean?

    As a prefix, bio means "life" or "living things", as in biology and biography.

    Source: the ENABLE word list (a public-domain dictionary used for word games), ranked by how often each word appears in English text (the open wordfreq project), with short meanings from Princeton WordNet. Offensive words are left out.

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