What is a brake saddle?

What is a brake saddle? Quasi the frame or the housing of a disc brake. More on this in this glossary entry

Brake caliper:
Is the frame or the housing of a disc brake. In it the brake pads are fixed and it contains the brake pistons, which, when mechanical or hydraulic activity, cause the pistons and also the coverings towards the brake disc.

Relevant contributions:
Bicycle safety tips, 
Spring check, 
Road -proof bike