'Brassica oleracea major' definitions:

Definition of 'Brassica oleracea major'

From: GCIDE

Savoy \Sa*voy"\, n. [F. chou de Savoie cabbage of Savoy.] (Bot.) A variety of the common cabbage (Brassica oleracea major), having curled leaves, -- much cultivated for winter use. [1913 Webster]