The Collaborative International Dictionary of English v.0.48:

Embonpoint \Em`bon`point"\, n. [F., fr. en bon point in good
   condition. See Bon, and Point.]
   Plumpness of person; -- said especially of persons somewhat
   corpulent.
   [1913 Webster]

WordNet (r) 3.0 (2006):

embonpoint
    adj 1: sufficiently fat so as to have a pleasing fullness of
           figure; "a chubby child"; "pleasingly plump"; [syn:
           chubby, embonpoint, plump]
    n 1: the bodily property of being well rounded [syn:
         plumpness, embonpoint, roundness]