One of Two Lower Chambers of the Heart
This page is the CodyCross answer for the clue below from Extraordinary Creatures, Group 1597, Puzzle 4 (Balaeniceps Rex).
Question is: One of Two Lower Chambers of the Heart
and the answer is: VENTRICLE
Word Meaning:
VENTRICLE — (anatomy, zootomy) Any small cavity within a body; a hollow part or organ, especially:
Definitions from Wiktionary.