rocket salad roc·ket·sa·lad uncommon noun 1. erect European annual often grown as a salad crop to be harvested when young and tender Synonymsrocketroquettegarden rocketrocket saladarugulaEruca sativaEruca vesicaria sativa Related words Broader terms herb Parts Eruca WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.