'Disk clutch' definitions:

Definition of 'disk clutch'

(from WordNet)
noun
A friction clutch in which the frictional surfaces are disks

Definition of 'Disk clutch'

From: GCIDE
  • Disk clutch \Disk clutch\ (Engin.) A friction clutch in which the gripping surfaces are disks or more or less resemble disks. [Webster 1913 Suppl.]