Wordnet 3.0
ADJECTIVE (1)
1.
pertaining to or worked or produced by friction;
- Example: "frictional electricity"- Example: "frictional heat"- Example: "frictional gearing"
The Collaborative International Dictionary of English v.0.48:
Frictional \Fric"tion*al\, a.
Relating to friction; moved by friction; produced by
friction; as, frictional electricity.
[1913 Webster]
Frictional gearing, wheels which transmit motion by surface
friction instead of teeth. The faces are sometimes made
more or less V-shaped to increase or decrease friction, as
required.
[1913 Webster]
WordNet (r) 3.0 (2006):
frictional
adj 1: pertaining to or worked or produced by friction;
"frictional electricity"; "frictional heat"; "frictional
gearing"