From The Collaborative International Dictionary of English v.0.48 :
fiddle-shaped \fiddle-shaped\ adj.
shaped like a fiddle; -- of a leaf shape.
Syn: pandurate, panduriform.
[WordNet 1.5]
From The Collaborative International Dictionary of English v.0.48 :
Fiddle-shaped \Fid"dle-shaped`\, a. (Bot.)
Inversely ovate, with a deep hollow on each side. --Gray.
[1913 Webster]
From WordNet (r) 3.0 (2006) :
fiddle-shaped
adj 1: (of a leaf shape) having rounded ends and a contracted
center [syn: pandurate, panduriform, fiddle-shaped]