Dictionary

simple machine

noun

Definition of SIMPLE MACHINE

:  any of various elementary mechanisms formerly considered as the elements of which all machines are composed and including the lever, the wheel and axle, the pulley, the inclined plane, the wedge, and the screw

First Known Use of SIMPLE MACHINE

circa 1704
SIMPLE MACHINE Defined for Kids

simple machine

noun

Definition of SIMPLE MACHINE for Kids

:  one of the fundamental devices that all machines were formerly thought to be made from <The lever, axle, pulley, inclined plane, wedge, and screw are the classic simple machines.>

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