SG Heritage Dictionary

Saddleback [Adjective] Webster's Dictionary 1913

Same as Saddle-backed.

Saddleback [Noun] Webster's Dictionary 1913

1. Anything saddle-backed; esp., a hill or ridge having a concave outline at the top.

2. The harp seal.

3. The great blackbacked gull (Larus marinus).

4. The larva of a bombycid moth (Empretia stimulea) which has a large, bright green, saddle-shaped patch of color on the back.