Thin Timber Layers Glued Together to Make Sheets
Puzzle 12 of Alternatives to Plastic Pack
Question is: Thin Timber Layers Glued Together to Make Sheets
and the answer is: PLYWOOD
Word Meaning:
PLYWOOD — (uncountable) Construction material supplied in sheets, and made of three or more layers of wood veneer glued together, laid up with alternating layers having their grain perpendicular to each other.
Definitions from Wiktionary.