bou·clé or bou·cle 
(b-klā)
(b-klā)n.
1. A type of yarn usually consisting of three strands, one of which is less taut, creating a looped or curly texture.
2. Fabric woven or knitted from this yarn.
[French, from past participle of boucler, to curl, from Old French, from boucle, buckle, curl of hair; see BUCKLE.]