allelochemicaladj.n.

Brit.

/əˌliːlə(ʊ)ˈkɛmᵻkl/,

/əˌlɛlə(ʊ)ˈkɛmᵻkl/, U.S.

/əˌlɛləˈkɛmək(ə)l/,

/əˌliləˈkɛmək(ə)l/

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek ἀλλήλο- , chemical adj.

Etymology: < ancient Greek ἀλλήλο- (see allelopathy n.) + chemical adj. Compare slightly earlier allelochemic n.

Biology.

A. adj.

Designating any of various chemicals that may be released into the environment by an organism, which evoke a specific response in an organism of another species; relating to, or involving these chemicals; spec. = allelopathic adj. at allelopathy n. Derivatives.

ΘΚΠ

the world > plants > disease or injury > [adjective] > injurious to plants > of plants releasing substance toxic to others

allelopathic1960

allelochemic1970

allelochemical1970

1970 Biochem. Interactions among Plants 7/1 With such a laboratory, the number of workers participating in allelochemical investigations would be increased.

1991 Jrnl. Vegetation Sci. 2 489/2 Many geophytes contain allelochemical substances such as convallatoxin (Convallaria maialis), allicin, a disulfide (A[llium] ursinum), flavonoïds (Arum maculatum, in the leaves) and luteolin (orchids).

2006 J. T. Costa Other Insect Societies xix. 643 The catholic tastes of N. lecontei suggest that this species can physiologically handle a wide range of allelochemical and nutritional host conditions.

B. n.

Any of various chemicals that may be released into the environment by an organism (typically in minute amounts), which evoke a specific response in an organism of another species; spec. an allelopathic substance. Cf. semiochemical n., pheromone n.

ΘΚΠ

the world > plants > disease or injury > [noun] > property of being injurious to plants > substance injurious to plants

phytotoxin1914

phytocide1936

phytotoxicant1955

allelochemic1969

allelochemical1971

1971 Marine Environmental Quality (National Research Council) 52 Ectocrine substances (allelochemicals) may deserve more extensive investigation.

1975 Proc. National Acad. Sci. U.S.A. 72 5160/1 Allelochemicals may serve as an important specific mechanism in interference competition for space among coral reef animals.

1993 M. J. Plotkin Tales Shaman's Apprentice v. 144 It is believed that certain trees release toxic substances called allelochemicals through their roots, which inhibit the ability of other plants to grow in these areas.

2007 New Scientist 27 Jan. 89/1 (advt.) Semio- and allelo-chemicals controlling development of the root parasite, Orobanche.

This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021).

单词	allelochemical
释义	allelochemicaladj.n. Brit. /əˌliːlə(ʊ)ˈkɛmᵻkl/, /əˌlɛlə(ʊ)ˈkɛmᵻkl/, U.S. /əˌlɛləˈkɛmək(ə)l/, /əˌliləˈkɛmək(ə)l/ Origin: A borrowing from Greek, combined with an English element. Etymons: Greek ἀλλήλο- , chemical adj. Etymology: < ancient Greek ἀλλήλο- (see allelopathy n.) + chemical adj. Compare slightly earlier allelochemic n. Biology. A. adj. Designating any of various chemicals that may be released into the environment by an organism, which evoke a specific response in an organism of another species; relating to, or involving these chemicals; spec. = allelopathic adj. at allelopathy n. Derivatives. ΘΚΠ the world > plants > disease or injury > [adjective] > injurious to plants > of plants releasing substance toxic to others allelopathic1960 allelochemic1970 allelochemical1970 1970 Biochem. Interactions among Plants 7/1 With such a laboratory, the number of workers participating in allelochemical investigations would be increased. 1991 Jrnl. Vegetation Sci. 2 489/2 Many geophytes contain allelochemical substances such as convallatoxin (Convallaria maialis), allicin, a disulfide (A[llium] ursinum), flavonoïds (Arum maculatum, in the leaves) and luteolin (orchids). 2006 J. T. Costa Other Insect Societies xix. 643 The catholic tastes of N. lecontei suggest that this species can physiologically handle a wide range of allelochemical and nutritional host conditions. B. n. Any of various chemicals that may be released into the environment by an organism (typically in minute amounts), which evoke a specific response in an organism of another species; spec. an allelopathic substance. Cf. semiochemical n., pheromone n. ΘΚΠ the world > plants > disease or injury > [noun] > property of being injurious to plants > substance injurious to plants phytotoxin1914 phytocide1936 phytotoxicant1955 allelochemic1969 allelochemical1971 1971 Marine Environmental Quality (National Research Council) 52 Ectocrine substances (allelochemicals) may deserve more extensive investigation. 1975 Proc. National Acad. Sci. U.S.A. 72 5160/1 Allelochemicals may serve as an important specific mechanism in interference competition for space among coral reef animals. 1993 M. J. Plotkin Tales Shaman's Apprentice v. 144 It is believed that certain trees release toxic substances called allelochemicals through their roots, which inhibit the ability of other plants to grow in these areas. 2007 New Scientist 27 Jan. 89/1 (advt.) Semio- and allelo-chemicals controlling development of the root parasite, Orobanche. This is a new entry (OED Third Edition, September 2012; most recently modified version published online December 2021). < adj.n.1970
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