adj, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A micro-organism such as a bacterium or yeast. dated
2. 2
   a rodlike bacterium (especially any of the rod-shaped or branched bacteria in the root nodules of nitrogen-fixing plants) wordnet
3. 3
   A bacterium of the species Bacteroides.
4. 4
   A symbiotic form of the nitrogen-fixing bacterium Rhizobia, or the root nodule that it produces.

Adjective

1. 1
   Resembling bacteria.

   "bacteroid particles"

Adjective

1. 1
   resembling bacteria wordnet

Synonyms

All synonyms

bacterioidbacterioidalbacteroidalbacteroidal

Etymology

From bacterium + -oid.

Related phrases

nitrogen fixing

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.