phy·​to·​tox·​ic ˌfī-tə-ˈtäk-sik How to pronounce phytotoxic (audio)
: poisonous to plants
phytotoxicity noun

Examples of phytotoxic in a Sentence

Recent Examples on the Web 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

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'phytotoxic.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


phyto- + toxic entry 1

First Known Use

1926, in the meaning defined above

Time Traveler
The first known use of phytotoxic was in 1926

Dictionary Entries Near phytotoxic

Cite this Entry

“Phytotoxic.” Dictionary, Merriam-Webster, Accessed 26 May. 2024.

Medical Definition


phy·​to·​tox·​ic ˌfīt-ə-ˈtäk-sik How to pronounce phytotoxic (audio)
: of or relating to a phytotoxin
: poisonous to plants
phytotoxic compounds
phytotoxicity noun
plural phytotoxicities
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