noun
portable power saw; teeth linked to form an endless chain
• Syn: ↑chainsaw
• Hypernyms: ↑power saw, ↑saw, ↑sawing machine
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noun : a portable power saw that has teeth linked together to form an endless chain and is usually used for the cutting of timber
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a power saw, usually portable, having teeth set on an endless chain.
[1840-50, Amer.]
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a tool used for cutting down trees, with a blade consisting of a set of connected metal points that are driven round very fast by a motor 
Thesaurus: tools mainly used with woodhyponym
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chain saw,
a saw consisting of an endless chain with a tooth on each link. Chain saws are used in tree surgery, coal mining, and logging. Most chain saws have small, built-in gasoline engines. »
I was cutting part of my winter's supply of firewood with a gasoline-operated chain saw (New Yorker).
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noun, pl ⋯ saws [count]
: a tool that cuts wood with a circular chain that is driven by a motor and made up of many connected sharp metal teeth
Useful english dictionary. 2012.