Plain English Meaning

Kevlar is a very strong, lightweight man-made fiber that is layered with resin to make tough, light parts of an aircraft. It is the same family of material used in body armor and is chosen where the structure needs to resist impacts and wear.

Full Definition

Kevlar is a brand name for a synthetic aramid fiber used in composite aircraft construction, valued for its high tensile strength, light weight, and excellent impact and abrasion resistance. It is commonly woven into fabric and bonded with resin to form structural panels, particularly in areas where toughness and damage tolerance matter more than stiffness.

Context Anchor

Seen in discussions of aircraft , especially where the describes fibers used to build or non- aircraft structures.