Microscopic Life Form, Meaning Little Rod
This page is the CodyCross answer for the clue below from World of Books, Group 287, Puzzle 5 (Book Stacks).
Question is: Microscopic Life Form, Meaning Little Rod
and the answer is: BACTERIUM
Word Meaning:
BACTERIUM — (microbiology) A single-celled organism with cell walls but no nucleus or organelles.
Definitions from Wiktionary.