Ply (layer)

A ply is a layer of material which has been combined with other layers in order to provide strength. The number of layers is indicated by prefixing a number, for example 4-ply, indicating material composed of 4 layers.

Etymology

The word "ply" derives from the French verb plier,^[1] "to fold", from the Latin verb plico, from the ancient Greek verb πλέκω.^[2]

Examples

Yarn, where plying is a spinning technique to combine several fibres.
Vehicle tires
Plywood
Toilet paper

References

^ Collins Dictionary of the English Language, 2nd Edition, London, 1986, p.1181
^ Cassell's Latin Dictionary, Marchant, J.R.V, & Charles, Joseph F., (Eds.), Revised Edition, 1928, p.421

[1] Collins Dictionary of the English Language, 2nd Edition, London, 1986, p.1181

[2] Cassell's Latin Dictionary, Marchant, J.R.V, & Charles, Joseph F., (Eds.), Revised Edition, 1928, p.421

[1]

[2]

Ply (layer)

Etymology

Examples

References

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