Prehistoric bacterium Synonyms

Definitions for Prehistoric


  • (adjective) having passed its time of use or usefulness
  • (adjective) belonging to or existing in times before recorded history
  • (adjective) of or relating to times before written history

Definitions for Bacterium


  • (noun) (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission ; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants