Enter a clue or pattern or both:
The Clue
Like atomic hydrogen (8 letter answer)
The Answer
REACTIVE
Tags
Notes
The answer REACTIVE is so rare that it appears less than once every 2500 puzzles.
Related Clues
Nuclear adjective
Not setting the agenda
Not taking the lead
Definition
REACTIVE as an adjective:
1. participating readily in reactions; "sodium is a reactive metal"; "free radicals are very reactive"
2. tending to react to a stimulus; "the skin of the geriatric is less reactive than that of younger persons"- Louis Tuft