ame·​lio·​rant | \ əˈmēlyərənt, -lēə- \
plural -s

Definition of ameliorant

: a substance that aids plant growth primarily by improving the physical condition of the soil

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First Known Use of ameliorant

1851, in the meaning defined above

History and Etymology for ameliorant

ameliorate + -ant

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Time Traveler for ameliorant

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The first known use of ameliorant was in 1851

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Cite this Entry

“Ameliorant.” Dictionary, Merriam-Webster, Accessed 24 Feb. 2021.

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