(of a polymer) having a regular sequence of configurations in space along the chain, resulting in the potential for close-packing of molecules and for partial or complete crystallinity.
Also, stereoregular
[ster-ee-oh-reg-yuh-ler, steer-] /ˌstɛr i oʊˈrɛg yə lər, ˌstɪər-/ (Show IPA).