The Collaborative International Dictionary of English v.0.48:
Dacron \Dacron\ n. [Trademark.] a brand of polyester textile fiber, or the wrinkle-resistant fabric prepared from it. Syn: dacron, Terylene. [WordNet 1.5]WordNet (r) 3.0 (2006):
Dacron n 1: a kind of polyester fabric [syn: Dacron, Terylene]