Source : Webster's Revised Unabridged Dictionary (1913)

Amplexicaul \Am*plex"i*caul\, a. [L. amplexus, p. p. of amplecti
   to encircle, to embrace + caulis stem: cf. F. amplexicaule.]
   (Bot.)
   Clasping or embracing a stem, as the base of some leaves.
   --Gray.