Refrigerator Predecessor; Slabs of Frozen Water
This page is the CodyCross answer for the clue below from Fauna and Flora, Group 171, Puzzle 1 (Common Ancestor).
Question is: Refrigerator Predecessor; Slabs of Frozen Water
and the answer is: ICEBOX
Word Meaning:
ICEBOX — A box or compartment containing ice, typically used to keep provisions cool.
Definitions from Wiktionary.