: poisonous to plants

Examples of phytotoxic in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
For dracaenas, very small concentrations of fluoride can be phytotoxic, meaning that the fluoride can kill plant cells. — Willi Evans Galloway, Good Housekeeping, 20 Aug. 2018

Word History

Etymology

phyto- + toxic entry 1

First Known Use

1926, in the meaning defined above

Time Traveler
The first known use of phytotoxic was in 1926

Browse Nearby Words

Cite this Entry

“Phytotoxic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phytotoxic. Accessed 26 Sep. 2026.

Medical Definition

phytotoxic

adjective
1
: of or relating to a phytotoxin
2
: poisonous to plants
phytotoxic compounds
phytotoxicity noun
plural phytotoxicities
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