Enter a clue or pattern or both:
The Clue
Very, very small (13 letter answer)
The Answer
INFINITESIMAL
Tags
Notes
The answer INFINITESIMAL is so rare that it appears less than once every 2500 puzzles.
Definition
INFINITESIMAL as a noun:
1. (mathematics) a variable that has zero as its limit
INFINITESIMAL as an adjective:
1. (infinitesimal, minute, microscopic) = infinitely or immeasurably small; "two minute whiplike threads of protoplasm"; "reduced to a microscopic scale"