joconde

noun1

1. •
   A light almond sponge cake.

   • The sponge itself is not the conventional Victoria but a thin and sumptuous joconde. — 2015

noun1

1. •
   (figurative, old-fashioned) A Mona Lisa.

   • […] in Paris he was the Joconde of the salon-piano, under Charles the Tenth. — 1899