Tracer :: Tracer (n.) One who, or that which, traces..
Tracer/y :: Tracer/y (n.) Ornamental work with rambled lines.
Tracer/y :: Tracer/y (n.) The decorative head of a Gothic window.
Tracer/y :: Tracer/y (n.) A similar decoration in some styles of vaulting, the ribs of the vault giving off the minor bars of which the tracery is composed..