amensaladj.n.

Brit.

/eɪˈmɛnsl/,

/əˈmɛnsl/,

/aˈmɛnsl/, U.S.

/eɪˈmɛns(ə)l/,

/əˈmɛns(ə)l/,

/æˈmɛns(ə)l/

Origin: Formed within English, by derivation. Etymons: a- prefix⁶, commensal adj.

Etymology: < a- prefix⁶ + -mensal (in commensal adj.; compare sense 2 at that entry). Compare amensalism n.

Biology.

A. adj.

Of, relating to, of the nature of, or characterized by amensalism; (of an organism or group of organisms) involved in amensalism.

ΘΚΠ

the world > life > biology > balance of nature > relationships of organisms > [adjective] > other interrelationships

phoretic1932

syntrophic1950

amensal1952

1952 P. R. Burkholder in Amer. Scientist 40 605 In the relationship of antibiosis..the coaction might be of the parasitic, amensal or some other type.

1987 M. G. Barbour et al. Terrestr. Plant Ecol. (ed. 2) vi. 126 The amensal organism..is not chamise but must be certain microbial decomposers.

2006 P. Attiwill & B. Wilson Ecology (ed. 2) xix. 312/1 The ants thus have an indirect amensal impact on the plants by prolonging and exacerbating the attacks of psyllids.

B. n.

An organism or group of organisms participating in an amensal relationship.Used originally to denote the organism experiencing harmful effects, and later also the one producing them.

ΚΠ

1953 E. P. Odum Fund. Ecol. vii. 168 One population (the amensal) is inhibited, whereas the other is unaffected.

1970 Jrnl. Marine Res. 28 173 The inhibitors (deposit feeders) are unaffected in their relationship while the amensals (suspension feeders and sessile epifauna) are either discouraged from settling or are killed.

2000 N. T. Wheelwright in N. M. Nadkarni & N. T. Wheelwright Monteverde xii. 421/2 These species may have been driven to rarity due to predators.., disease organisms and other parasites, competitors for limited resources, or amensals.

2017 R. Pierotti & B. R. Fogg First Domestication i. 36 The illogic of this conclusion derives from their observation that humans could survive without dogs; therefore dogs should be considered parasites, or amensals.

This entry has been updated (OED Third Edition, September 2020; most recently modified version published online December 2021).

单词	amensal
释义	amensaladj.n. Brit. /eɪˈmɛnsl/, /əˈmɛnsl/, /aˈmɛnsl/, U.S. /eɪˈmɛns(ə)l/, /əˈmɛns(ə)l/, /æˈmɛns(ə)l/ Origin: Formed within English, by derivation. Etymons: a- prefix⁶, commensal adj. Etymology: < a- prefix⁶ + -mensal (in commensal adj.; compare sense 2 at that entry). Compare amensalism n. Biology. A. adj. Of, relating to, of the nature of, or characterized by amensalism; (of an organism or group of organisms) involved in amensalism. ΘΚΠ the world > life > biology > balance of nature > relationships of organisms > [adjective] > other interrelationships phoretic1932 syntrophic1950 amensal1952 1952 P. R. Burkholder in Amer. Scientist 40 605 In the relationship of antibiosis..the coaction might be of the parasitic, amensal or some other type. 1987 M. G. Barbour et al. Terrestr. Plant Ecol. (ed. 2) vi. 126 The amensal organism..is not chamise but must be certain microbial decomposers. 2006 P. Attiwill & B. Wilson Ecology (ed. 2) xix. 312/1 The ants thus have an indirect amensal impact on the plants by prolonging and exacerbating the attacks of psyllids. B. n. An organism or group of organisms participating in an amensal relationship.Used originally to denote the organism experiencing harmful effects, and later also the one producing them. ΚΠ 1953 E. P. Odum Fund. Ecol. vii. 168 One population (the amensal) is inhibited, whereas the other is unaffected. 1970 Jrnl. Marine Res. 28 173 The inhibitors (deposit feeders) are unaffected in their relationship while the amensals (suspension feeders and sessile epifauna) are either discouraged from settling or are killed. 2000 N. T. Wheelwright in N. M. Nadkarni & N. T. Wheelwright Monteverde xii. 421/2 These species may have been driven to rarity due to predators.., disease organisms and other parasites, competitors for limited resources, or amensals. 2017 R. Pierotti & B. R. Fogg First Domestication i. 36 The illogic of this conclusion derives from their observation that humans could survive without dogs; therefore dogs should be considered parasites, or amensals. This entry has been updated (OED Third Edition, September 2020; most recently modified version published online December 2021). < adj.n.1952
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