Main Entry:

¹poly·es·ter

Pronunciation:

\ˈpä-lē-ˌes-tər, ˌpä-lē-ˈ\

Function:

noun

Etymology:

International Scientific Vocabulary

Date:

1929

: any of a group of polymers that consist basically of repeated units of an ester and are used especially in making fibers or plastics ; also : a product (as a fiber or fabric) composed of polyester

— poly·es·ter·i·fi·ca·tion \-e-ˌster-ə-fə-ˈkā-shən\ noun