bacterium
UK/bæk'tiәriәm/US
IELTSGREC2
Definitions
n.
A single microscopic organism of the kind collectively called bacteria.
（一个）细菌（bacteria 的单数）。
Root Breakdown
Root-derivedFrom Greek bakterion ('little rod'), with the Latin singular ending -um. A bacterium is one of the rod-named microbes; its plural is bacteria. Use bacterium when you mean exactly one.
Root bacter still carries 3 more wordsExample Sentences
- 1.
A single bacterium can divide into millions within hours.
- 2.
Scientists isolated the bacterium responsible for the outbreak.