Enter a clue or pattern or both:
The Clue
Prompter (8 letter answer)
The Answer
CATALYST
Tags
Notes
The answer CATALYST is rarely seen, appearing only about once every 1200 puzzles.
Related Clues
Instigator
Spark
Agent for action
Precipitating agent
Stimulus of a kind
That which causes
Chemist's reaction-producer
Part of a chemical reaction
Spark plug of a sort
Definition
CATALYST as a noun:
1. (catalyst, accelerator) = (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
2. something that causes an important event to happen; "the invasion acted as a catalyst to unite the country"