Webster's Revised Unabridged Dictionary · 1913

Pandurate

Pandurate , adjective

[Latin pandura a pandore + -form: compare French panduriforme.]

1.
Obovate, with a concavity in each side, like the body of a violin; fiddle-shaped; as, a panduriform leaf; panduriform color markings of an animal.
2.
(Botany) Shaped like a fiddle; -- of a leaf.

Also: Panduriform