Source : Webster's Revised Unabridged Dictionary (1913)

Carrot \Car"rot\, n. [F. carotte, fr. L. carota; cf. Gr. ?]
   1. (Bot.) An umbelliferous biennial plant ({Daucus Carota}),
      of many varieties.

   2. The esculent root of cultivated varieties of the plant,
      usually spindle-shaped, and of a reddish yellow color.

Source : WordNet®

Daucus carota
     n : 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}]