Definition of saddle-bow:
(n) :
A seat for a rider, typically made of leather and raised in the front and rear, placed on the back of a horse or other animal, and secured by a strap around the animal's body.
(n) :
A similar implement used to secure goods to animals; a packsaddle.
(n) :
Synonym of harness saddle (“the part of a harness which supports the weight of poles or shafts attaching a vehicle to a horse or other animal”).
(n) :
A cushion used as a seat in a cart or other vehicle.
(n) :
The immovable seat of a bicycle, motorcycle, or similar vehicle.
(n) :
(by extension) Chiefly preceded by the: horse-riding as an activity or occupation.