polyamide

Cottoncanvas is likely misspelled.

Cottoncanvas has no English definition.

As a noun polyamide is

any of a range of polymers containing amide (or peptide) repeat units; examples include proteins and nylon.

As a noun polyamide is

.

As nouns the difference between kevlar and polyamide

is that kevlar is an exceptionally strong, light, man-made fibre used to strengthen cables and sheet materials, e.g. in stab-resistant vests while polyamide is any of a range of polymers containing amide (or peptide) repeat units; examples include proteins and nylon.

In chemistry terms the difference between melamine and polyamide

is that melamine is a strong aromatic heterocyclic base, tri-amino-triazine, used, in combination with formaldehyde to manufacture melamine resins such as Formica&trade while polyamide is any of a range of polymers containing amide (or peptide) repeat units; examples include proteins and nylon.

As a proper noun cotton

is the name of several settlements around the world or cotton can be .

As a noun polyamide is

.