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1. Producing or promoting a favorable result; advantageous: a trade agreement beneficial to all countries.
2. Law Involving the receipt of funds, property, or other benefits, as from an insurance policy or trust.
Organisms that are beneficial to a human endeavor, especially insects that are predators of pests.
[Middle English, from Old French beneficial, from Late Latin beneficiālis, from Latin beneficium, benefit; see benefice.]
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|Adv.||1.||beneficially - in a beneficial manner; "this medicine will act beneficially on you"|