nylon

As a noun aramid

is any of a class of strong, heat-resistant synthetic fibres, used in aerospace and military applications.

As an initialism HDPE

is high-density polyethylene

As a noun nylon is

originally, the DuPont company trade name for polyamide, a copolymer whose molecules consist of alternating diamine and dicarboxylic acid monomers bonded together; now generically used for this type of polymer.

As a noun taxonomy

is the science or the technique used to make a classification.

As a noun popsock is

a short form of nylon stocking, with an elasticated top, reaching to the knee.

As a noun pouf is

(historical) a headdress for women popular in 18th century france.

As an interjection pouf is

onomatopoeia indicating a cloud of smoke or wind; caused by a deflating object, or a magical disappearance.

As a proper noun london

is the capital city of the united kingdom and of england, situated near the mouth of the river thames in southeast england, with a metropolitan population of more than 12,000,000.

As a noun nylonase is

collectively a type of enzyme capable of digesting manmade molecules of nylon.