Knotted Savory Dough Biscuit
This page is the CodyCross answer for the clue below from Physics, Group 1899, Puzzle 4 (Absorption Spectrum).
Question is: Knotted Savory Dough Biscuit
and the answer is: PRETZEL
Word Meaning:
PRETZEL — (cooking) A toasted bread or cracker usually in the shape of a loose knot.
Definitions from Wiktionary.