The Collaborative International Dictionary of English v.0.48:
Pear-shaped \Pear"-shaped`\, a. Of the form of a pear. [1913 Webster]WordNet (r) 3.0 (2006):
pear-shaped adj 1: having a round shape tapered at one end 2: (of sounds) full and rich; "orotund tones"; "the rotund and reverberating phrase"; "pear-shaped vowels" [syn: orotund, rotund, round, pear-shaped]