1. 
[syn: wild carrot, Queen Anne's lace, Daucus carota]
The Collaborative International Dictionary of English v.0.48:
Carrot \Car"rot\, n. [F. carotte, fr. L. carota; cf. Gr. ?]
   1. (Bot.) An umbelliferous biennial plant (Daucus Carota),
      of many varieties.
      [1913 Webster]
   2. The esculent root of cultivated varieties of the plant,
      usually spindle-shaped, and of a reddish yellow color.
      [1913 Webster]
WordNet (r) 3.0 (2006):
Daucus carota
    n 1: a widely naturalized Eurasian herb with finely cut foliage
         and white compound umbels of small white or yellowish
         flowers and thin yellowish roots [syn: wild carrot,
         Queen Anne's lace, Daucus carota]