Source : Webster's Revised Unabridged Dictionary (1913)

Calceolate \Cal"ce*o*late\, a. [See {Calceolaria}.]
   Slipper-ahaped. See {Calceiform}.

Source : WordNet®

calceolate
     adj : slipper-shaped; "the calceiform lip of certain orchids"
           [syn: {calceiform}]