Name for a Disc-Shaped Emblem on a Flag

This page is the CodyCross answer for the clue below from Futuristic City , Group 987, Puzzle 4 (Self Healing Concrete).

Question is: Name for a Disc-Shaped Emblem on a Flag

and the answer is: ROUNDEL

Word Meaning:

ROUNDEL — Anything having a round form; a round figure; a circle.

Definitions from Wiktionary.