It might be essential (9 letters) — Crossword Helper

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The Clue

It might be essential (9 letter answer)

The Answer

AMINOACID

Tags

aminoacid body builder essential factor growth important leucine lysine might tryptophan

Notes

The answer AMINOACID is so rare that it appears less than once every 2900 puzzles.

Related Clues

Body builder?
Lysine or tryptophan
Tryptophan or leucine
Important factor in growth