phytotoxicantn.adj.
/ˌfʌɪtəʊˈtɒksᵻk(ə)nt/, U.S. /ˌfaɪdoʊˈtɑksək(ə)nt/ A substance poisonous or injurious to plants; esp. one present in the air. Also attributive or as adj.: phytotoxic.
ΘΚΠ
the world > plants > disease or injury > [noun] > property of being injurious to plants > substance injurious to plants
phytotoxin1914
phytocide1936
phytotoxicant1955
allelochemic1969
allelochemical1971
1955 Sci. Monthly July 20/1 The Citrus Experiment Station at Riverside, California, is currently investigating the effects of air pollution on plants..and is also studying the nature of the phytotoxicants by means of the plants' responses.
1961 Ann. Rev. Plant Physiol. 12 431 The principal phytotoxicants recognized several decades ago were fairly specific, simple molecules, such as ethylene, fluorides, hydrogen sulfide, and sulfur dioxide.
1977 I. M. Campbell Energy & Atmosphere viii. 248 The level of sophistication which has now been attained has resulted in the identification of single phytotoxicant species.
1991 New Phytologist 118 429/1 Chlorophyll fluorescence quenching in the tissue exposed to HSO3− slowly declined to 64% that of tissue not exposed to the phytotoxicant.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.adj.1955- parti-fellow
- parti-generic
- parti-livered
- parti-membered
- parti-partial
- parti-total
- partial
- partial birth abortion
- partial correlation
- partial counsel
- partial denture
- partial determinant
- partial differential equation
- partial dislocation
- partial drought
- partial fraction
- partial indulgence
- partial involucre
- partial loss
- partial order
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- partial pressure
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- partial recursive