Brassica rapa bras·si·ca·rapa uncommon noun 1. widely cultivated plant having a large fleshy edible white or yellow root Synonymsturnipwhite turnipBrassica rapa Related words Word family Brassica rapa chinensisBrassica rapa pekinensisBrassica rapa perviridisBrassica rapa ruvo Broader terms turnip plant Parts Brassica Part of white turnipturnip greens WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.