French sorrel french·sor·rel uncommon noun 1. low perennial with small silvery-green ovate to hastate leaves SynonymsFrench sorrelgarden sorrelRumex scutatus 2. small tart oval to spearpoint-shaped leaves; preferred to common sorrel for salads SynonymsFrench sorrel Related words Broader terms greensdock Parts French sorrel Part of French sorrel WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.