Webster's Revised Unabridged Dictionary · 1913

Saddleback

Saddleback , adjective

Same as Saddle-backed.
Collocations (1)
Saddleback roof (Architecture) , See Saddle roof, under Saddle.

Saddleback , noun

1.
Anything saddle-backed; esp., a hill or ridge having a concave outline at the top.
2.
(a) (Zoology) The harp seal.
(b)
(Zoology) The great blackbacked gull (Larus marinus).
(c)
(Zoology) The larva of a bombycid moth (Empretia stimulea) which has a large, bright green, saddle-shaped patch of color on the back.