Noun
thimble-shaped mass of cells covering and protecting the growing tip of a root
Source: WordNetThe meristem cells more or less continuously divide, producing more meristem, root cap cells (these are sacrificed to protect the meristem), and undifferentiated root cells. Source: Internet
Katz and Weaver, p. 279 The word brassica derives from bresic, a Celtic word for cabbage. citation Many European and Asiatic names for cabbage are derived from the Celto-Slavic root cap or kap, meaning "head". Source: Internet
The epidermis of roots originates from the layer of cells immediately beneath the root cap. Source: Internet