chainsaw

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WORDNET DICTIONARY

Noun chainsaw has 1 sense

chainsaw(n = noun.artifact) chain saw - portable power saw; teeth linked to form an endless chain; Array

is a kind of power saw, saw, sawing machine

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CIDE DICTIONARY

chainsaw, n.

a portable power saw having teeth that are linked to form an endless chain, rotated about two pivot points by a power mechanism, such as an electric motor or a gasoline engine.

"They are used to efficiently cut trees, logs, or thick branches out of doors." [WordNet 1.5]

For further exploring for "chainsaw" in Webster Dictionary Online