Cereal Grain Used in Beer Brewing
This page is the CodyCross answer for the clue below from Physics, Group 1884, Puzzle 4 (Spectroscopy).
Question is: Cereal Grain Used in Beer Brewing
and the answer is: BARLEY
Word Meaning:
BARLEY — A cereal of the species Hordeum vulgare, or its grains, often used as food or to make beer and other malted drinks.
Definitions from Wiktionary.