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.” The Dictionary, Merriam-Webster Inc., Accessed 26 January 2020.

Comments on ameliorant

What made you want to look up ameliorant? Please tell us where you read or heard it (including the quote, if possible).


to express in a more acceptable way

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