D defs.my
Entry 3 senses Webster, 1913

Tracery

· Tra·cery · IPA /ˈtɹeɪsəɹi/
01 n. Ornamental work with rambled lines.
pl. Traceries
  1. 1.
    Ornamental work with rambled lines.(Arch.)
  2. 2.
    A similar decoration in some styles of vaulting, the ribs of the vault giving off the minor bars of which the tracery is composed.
  3. 3.
    A tracing of lines; a system of lines produced by, or as if by, tracing, esp. when interweaving or branching out in ornamental or graceful figures.