1 [usually as modifier] a thing shaped like the back of a violin, with the sides deeply curved inwards, especially the back of a chair or the front of a chasuble.
2 [mass noun] a rippled effect in the grain of fine wood, often exploited when making the backs of violins: [as modifier]:fiddleback mahogany
fiddleback in other Oxford dictionaries
Definition of fiddleback in the US English dictionary
