cauliflower -
An annual variety of Brassica oleracea, or cabbage, of which the cluster of young flower stalks and buds is eaten as a vegetable.
cauliflower -
The edible head or “curd” of a cauliflower plant.
Wikipedia
Cauliflower is one of several vegetables in the species Brassica oleracea, in the family Brassicaceae. It is an annual plant that reproduces by seed. Typically, only the head (the white curd) of aborted floral meristems is eaten, while the stalk and surrounding thick, green leaves are used in vegetable broth or discarded.
OmegaWiki Dictionary
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cauliflower A variety of the cabbage (Brassica oleracea), of which the cluster of young flower stalks and buds is eaten as a vegetable.