sweet pepper n 1: mild bell-shaped fruit of a sweet pepper plant; usually green and red but now available in orange and yellow and purple and black and white 2: plant bearing large mild thick-walled usually bell-shaped fruits; the principal salad peppers [syn: {bell pepper}, {pimento}, {pimiento}, {paprika}, {sweet pepper plant}, {Capsicum annuum grossum}] 3: large mild crisp thick-walled capsicum peppers usually bell-shaped or somewhat oblong