Pronunciation: (klas'is), [key]
—pl. clas•sesPronunciation: (klas'ēz). [key] (in certain Reformed churches)
1. the organization of pastors and elders that governs a group of local churches; a presbytery.
2. the group of churches governed by such an organization.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.