polyamide

[ pol-ee-am-ahyd, -id ]

noun

, Chemistry.

1. a polymer in which the monomer units are linked together by the amide group –CONH–.

polyamide

/ -mɪd; ˌpɒlɪˈæmaɪd /

noun

1. any one of a class of synthetic polymeric materials containing recurring -CONH- groups See also nylon

polyamide

/ pŏl′ē-ăm′īd′ /

1. A polymer produced by the reaction of the amino group (NH 2 ) from one molecule with the carboxylic acid group (CO 2 H) from another molecule. The resulting structure is similar to that of a protein. Silk is a naturally occurring polyamide, and nylon is a synthetic polyamide.

Word History and Origins

Origin of polyamide¹

First recorded in 1925–30; poly- + amide

Example Sentences

Notably, wrenching this ultra-strong polyamide apart required two times more force than breaking steel of the same thickness.

From Popular-Science

Like Kevlar, the polyamide molecules in this new material tether to each other via hydrogen bonding all along the lengths of their chains, thereby reinforcing the material’s overall strength.

From Popular-Science

The bonded, shock-absorbing polyamide shell, with carbon fiber below the foot, means it also skis amazingly damp at speed.

From Outside Online

Fabric Makeup and DensityMicrofiber used for cleaning cloths is made up of a combination of polyester and polyamide.

From Popular-Science

We also looked for a decent percentage of polyamide, an indicator of a good cloth.

From Popular-Science