noun Chemistry.
an elastic substance occurring naturally, as natural rubber, or produced synthetically, as butyl rubber or neoprene.

1935–40; elast(ic) + -o- + Greek méros a part

elastomeric [ih-las-tuh-mer-ik] , adjective
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World English Dictionary
elastomer (ɪˈlæstəmə)
any material, such as natural or synthetic rubber, that is able to resume its original shape when a deforming force is removed
[C20: from elastic + -mer]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica


any rubbery material composed of long, chainlike molecules that are capable of recovering their original shape after being stretched to great extents. Under normal conditions the long molecules making up an elastomeric material are irregularly coiled. With the application of force, however, the molecules straighten out in the direction in which they are being pulled. Upon release, the molecules spontaneously return to their normal compact, random arrangement.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
The tape is made of a biodegradable elastomer that can be laced with drugs.
There are three main parts to each: the inner steel member, the outer steel member, and the elastomer.
Elastomer impregnated slings shall be proof tested before coating.
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