Chemistry(of a polymer molecule) having a regular alternation of opposite configurations at successive regularly spaced positions along the chain. Cf. configuration (def. 4).
Greek sýndyo two together (see syn-, duo-) + tactic
1955–60; irregularly
syn•di•o•tac•tic•i•ty(sin dī′ō tak tis′i tē, sin′dī-),USA pronunciationn.