Enter a clue or pattern or both:
The Clue
Not much time (10 letter answer)
The Answer
NANOSECOND
Tags
Notes
The answer NANOSECOND is so rare that it appears less than once every 2500 puzzles.
Definition
NANOSECOND as a noun:
1. one billionth (10^-9) of a second; one thousandth of a microsecond