Enter a clue or pattern or both:
The Clue
Jet speed units (5 letter answer)
The Answer
MACHS
Tags
Notes
The answer MACHS is so rare that it appears less than once every 2500 puzzles.
Related Clues
Numbers named for an Austrian physicist
Definition
MACH as a noun:
1. (Mach, Ernst Mach) = Austrian physicist and philosopher who introduced the Mach number and who founded logical positivism (1838-1916)