— syndiotacticity /sin duy'oh tak tis"i tee, sin'duy-/ , n.
/sin duy'oh tak"tik, sin'duy-/ , adj. Chem.
(of a polymer molecule) having a regular alternation of opposite configurations at successive regularly spaced positions along the chain. Cf. configuration (def. 4).
[ 1955-60; irreg. sýndyo two together (see SYN-, DUO-) + TACTIC ]