Hormone Gland in the Neck
This page is the CodyCross answer for the clue below from Pet Shop, Group 349, Puzzle 4 (Tank Heaters).
Question is: Hormone Gland in the Neck
and the answer is: THYROID
Word Meaning:
THYROID — (anatomy) Of, relating to, or being the thyroid cartilage.
Definitions from Wiktionary.