FRICTIONAL
frictional
(adjective) pertaining to or worked or produced by friction; “frictional electricity”; “frictional heat”; “frictional gearing”
Source: WordNet® 3.1
Etymology
Adjective
frictional (not comparable)
Relating to, or caused by, friction.
Synonyms
• frictive
• frictious
Source: Wiktionary
Fric"tion*al, a.
Definition: Relating to friction; moved by friction; produced by friction; as, frictional electricity. 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.
Source: Webster’s Unabridged Dictionary 1913 Edition
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