HyperDic: red_onion

English > 1 sense of the expression *red onion*:
NOUN	food	red onion, purple onion	flat mild onion having purplish tunics

English > *red onion*: 1 sense > noun 1, food
Meaning	Flat mild onion having purplish tunics; used as garnish on hamburgers and salads.
Synonym	purple onion
Broader	Spanish onion	large mild and succulent onion
Spanish	cebolla roja