Source : Webster's Revised Unabridged Dictionary (1913)

Heddle \Hed"dle\, n.; pl. {Heddles}. [Cf. {Heald}.] (Weaving)
   One of the sets of parallel doubled threads which, with
   mounting, compose the harness employed to guide the warp
   threads to the lathe or batten in a loom.

Heddle \Hed"dle\, v. t.
   To draw (the warp thread) through the heddle-eyes, in
   weaving.