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{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

A single-celled organism.

Usage examples (36)
  • A scientist may be able to see a single bacterium through a microscope.
  • The cholera bacterium is shaped like a comma with a tail (above).
  • The bacterium is so destructive that it is common to cough up both mucus and blood.
  • When a nonlysogenic bacterium is infected by a temperate phage, it will either undergo lysis or become lysogenic. for more
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