frictional

[ frik-shuh-nl ]

adjective

1. of, relating to, or of the nature of friction.
2. moved, worked, or produced by friction.

Other Words From

• friction·al·ly adverb
• un·friction·al adjective
• un·friction·al·ly adverb

Word History and Origins

Origin of frictional¹

First recorded in 1840–50; friction + -al ¹

Example Sentences

This 19th-century physical law recognizes that in a system that uses energy, such as a steam or gasoline engine, some energy is lost forever as frictional processes turn it into heat.

From Nautilus

The rove is drawn forward by surface or frictional contact between the roll itself and a rapidly rotating drum.

From Project Gutenberg

In many treatises on hydraulics it is stated that the frictional resistance is independent of the nature of the solid surface.

From Project Gutenberg

The frictional resistance is independent of the pressure between the fluid and the solid against which it flows.

From Project Gutenberg

The distance through which the frictional resistance is overcome is v ft. per second.

From Project Gutenberg

The frictional resistance of large surfaces is proportional to the area of the surface.

From Project Gutenberg