Enter a clue or pattern or both:
The Clue
Spasmodic, as a muscle (6 letter answer)
The Answer
CLONIC
Tags
Notes
The answer CLONIC is so rare that it appears less than once every 2500 puzzles.
Definition
CLONIC as an adjective:
1. of or relating to abnormal neuromuscular activity characterized by rapidly alternating muscle contraction and relaxation; "clonic spasm"