a challenging, protective, semitransparent substance, primarily a nitrogen-containing polysaccharide, developing the principal part of arthropod exoskeletons in addition to mobile wall space of particular fungi.
A complex polysaccharide, a polymer of N-acetylglucosamine, based in the exoskeletons of arthropods and in the cellular wall space of fungi; considered to be in charge of some types of symptoms of asthma in humans.
A white amorphous horny substance creating the more difficult area of the exterior integument of pests, crustacea, as well as other other invertebrates; entomolin.
title given by Odier into natural material which forms the elytra and integuments of bugs additionally the carapaces of Crustacea, and which can be gotten by tiring the wing-cases of May-beetles or June-bugs with water, alcoholic beverages, ether, acetic acid, and boiling alkalis.
a tough semitransparent horny substance; the main part of the exoskeletons of arthropods while the cell walls of certain fungi