▸ noun
1 a cultivated plant eaten as a vegetable, having thick green or purple leaves surrounding a spherical heart or head of young leaves.
Brassica oleracea, family Cruciferae (or Brassicaceae; the cabbage family). As well as the brassicas, the members of this family (known as crucifers) include the mustards and cresses together with many ornamentals (candytuft, alyssum, stocks, nasturtiums, wallflowers).
▪ [mass noun] the leaves of cabbage, eaten as a vegetable:
boiled cabbage.
– ORIGIN late Middle English: from Old French (Picard) caboche ‘head’, variant of Old French caboce, of unknown origin.