Hear It!

bacterium

Which Means:

A tiny one-celled microorganism (living thing) that usually lives off another organism. Bacterium can be helpful and harmful.

As In:

Image The microscope will be able to examine the bacterium closely.

Heads Up!

The plural of bacterium is 'bacteria'. On Latin words ending in -IUM, the -IUM changes to -IA.

 
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