1. of a chemical compound having a ring with six members; - Example: "having three carbon and three nitrogen atoms in a six-membered ring" [syn: six-membered, 6-membered]
WordNet (r) 3.0 (2006):
6-membered
adj 1: of a chemical compound having a ring with six members;
"having three carbon and three nitrogen atoms in a six-
membered ring" [syn: six-membered, 6-membered]