Enter a clue or pattern or both:
The Clue
Paramecium, rotifer, etc. (10 letter answer)
The Answer
ANIMALCULA
Tags
Notes
The answer ANIMALCULA is so rare that it appears less than once every 2500 puzzles.
Definition
ANIMALCULUM as a noun:
1. (animalcule, animalculum) = microscopic organism such as an amoeba or paramecium