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Home/USA Today Rootonym/A microorganism, especially a disease-causing bacterium; a minute life form (noun)

A microorganism, especially a disease-causing bacterium; a minute life form (noun)

Nora WhitfieldNora Whitfield Crossword Editor · Verified answers

Looking for the answer to the USA Today Rootonym clue “A microorganism, especially a disease-causing bacterium; a minute life form (noun)”? The solution is MICROBE, a 7-letter word built on the root MICRO (“small”). It appeared in the October 1, 2026 (Thursday) USA Today Rootonym. See the full puzzle for that day's other words.

Answer
MICROBE
MICRO**MICROmeans “small”
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In a sentence

A mysterious MICROBE caused such a severe reaction that Tim needed hospitalization.

About this clue

The Rootonym clue “A microorganism, especially a disease-causing bacterium; a minute life form (noun)” has the answer MICROBE (7 letters), built on the root MICRO, which means “small”. Browse the full October 1, 2026 Rootonym puzzle for the other three words, or see all Rootonym answers.

Related clues from this puzzle

A medical procedure performed under magnification with small specialized instruments (noun) Anything that is regarded as a world in miniature, as a town (noun) Tiny; so small as to be invisible without enlargement (adjective)
Browse all Rootonym puzzles →
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