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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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
the state of being beneficial
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014