Definition of beneficial
1
: producing good results or helpful effects : conferring benefits (see benefit entry 1 sense 1)
the beneficial effects of regular exercise insects that are beneficial to your garden
2
: receiving or entitling one to receive advantage, use, or benefit
a beneficial owner of securities a beneficial interest in an estate
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Merriam-Webster unabridged
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Time Traveler for beneficial
The first known use of beneficial was in the 15th century
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