plural of friction

The rubbing of one object or surface against another. / (physics) A force that resists the relative motion or tendency to such motion of two bodies in contact.

Relating to, or caused by, friction.

In terms of friction

(physics) The ratio between (1) the magnitude of the force of friction which a surface produces on an object (moving along the surface or being pressed statically against it) and (2) the magnitude of the normal force which is produced by the surface on the object and which is perpendicular to that surface.

(economics) A type of unemployment explained by people being temporarily between jobs, searching for new ones. A labour market is regarded as being in the state of full employment if frictional unemployment is the only kind of unemployment present.

A category of knot tied around another rope, which allows the hitch to be moved up and down the other rope, but which remains stationary when a load is placed on it.

urban blight caused by negative environmental effects

plural of coefficient of friction

(music) A drum (membranophone) that produces sound through friction. / (engineering) A type of gear.