Definition of Friction

1. Noun. A state of conflict between persons.

Exact synonyms: Clash
Generic synonyms: Conflict
Derivative terms: Clash, Clash

2. Noun. The resistance encountered when one body is moved in contact with another.
Exact synonyms: Rubbing
Specialized synonyms: Abrasion, Attrition, Detrition, Grinding, Adhesive Friction, Grip, Traction
Generic synonyms: Resistance
Derivative terms: Frictional, Rub

3. Noun. Effort expended in moving one object over another with pressure.
Exact synonyms: Detrition, Rubbing
Specialized synonyms: Attrition
Generic synonyms: Effort, Elbow Grease, Exertion, Sweat, Travail
Derivative terms: Frictional, Rub

Definition of Friction

1. n. The act of rubbing the surface of one body against that of another; attrition; in hygiene, the act of rubbing the body with the hand, with flannel, or with a brush etc., to excite the skin to healthy action.

Definition of Friction

1. Noun. The rubbing of one object or surface against another. ¹

2. Noun. Conflict, as between persons having dissimilar ideas or interests; clash. ¹

3. Noun. (context: physics): A force that resists the relative motion or tendency to such motion of two bodies in contact. ¹

¹ Source:

Definition of Friction

1. the rubbing of one body against another [n -S]

Medical Definition of Friction

1. Surface resistance to the relative motion of one body against the rubbing, sliding, rolling, or flowing of another with which it is in contact. (12 Dec 1998)

Friction Pictures

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Lexicographical Neighbors of Friction

friction (current term)
friction clutch
friction hitch
friction match
friction murmur
friction rub
friction sound
friction tape
frictional attachment
frictional blight
frictional unemployment

Literary usage of Friction

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"friction, in mechanics, is the adhesion or degree of adhesion of contacting surfaces; the resistance which opposes the slipping or sliding of two bodies in ..."

2. The Elementary Part of A Treatise on the Dynamics of a System of Rigid by Edward John Routh (1905)
"The friction at P, by the first rule just given, must also act ... If P move, the amount of friction at P is limiting friction and is equal to fiR, ..."

3. Mechanics by Lewis Raymond Smith (1922)
"Advantages and Disadvantages of friction.—It would be impossible for us to do without ... If there was no friction, we would be unable to walk or stand; ..."

4. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences and General (1890)
"friction resists the motion of one surface upon another, but it may and frequently ... In the absence of friction it would simply cause A to alide on B, ..."

5. Transactions of the American Institute of Electrical Engineers by American Institute of Electrical Engineers (1913)
"friction. The friction of two bodies in sliding contact is governed by—1st, ... The actual value of this friction (expressed in watts or hp) can only be ..."

6. Transactions of the American Society of Mechanical Engineers by American Society of Mechanical Engineers (1891)
"The friction of the stuffing boxes or piston rods is assumed at 6 lbs. per ... Measurement of the friction of packing made by the writer in the case of a ..."

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