frictional

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fric·tion

 (frĭk′shən)
n.
1. The rubbing of one object or surface against another.
2. Conflict, as between persons having dissimilar ideas or interests; clash.
3. Physics A force that resists the relative motion or tendency to such motion of two bodies or substances in contact.

[Latin frictiō, frictiōn-, from frictus, past participle of fricāre, to rub.]

fric′tion·al adj.
fric′tion·al·ly adv.

fric•tion•al

(ˈfrɪk ʃə nl)

adj.
1. pertaining to or of friction.
2. moved or produced by friction.
[1840–50]
fric′tion•al•ly, adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.frictional - pertaining to or worked or produced by friction; "frictional electricity"; "frictional heat"; "frictional gearing"