Certain neurotransmitter (9 letters) — Crossword Helper

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The Clue

Certain neurotransmitter (9 letter answer)

The Answer

SEROTONIN

Tags

alterer associated certain mood natural neurotransmitter serotonin sleep

Notes

The answer SEROTONIN is so rare that it appears less than once every 2500 puzzles.

Related Clues

Natural mood alterer
Neurotransmitter associated with sleep

Definition

SEROTONIN as a noun:

1. (serotonin, 5-hydroxytryptamine) = a neurotransmitter involved in e.g. sleep and depression and memory