autoactivationn.

Brit.

/ˌɔːtəʊaktᵻˈveɪʃn/, U.S.

/ˌɔdoʊˌæktəˈveɪʃ(ə)n/,

/ˌɑdoʊˌæktəˈveɪʃ(ə)n/

Origin: Formed within English, by compounding; originally modelled on a German lexical item. Etymons: auto- comb. form¹, activation n.

Etymology: < auto- comb. form¹ + activation n., originally after German Autoactivirung (1903 in a biological context in the passage translated in quot. 1906, or earlier; now Autoaktivierung ). Compare French autoactivation (1903 (in the context of radioactivity) or earlier), and also German Selbstaktivierung (1904 (in a physics context) or earlier). Compare earlier autoactive adj. and later auto-activate v.

Chiefly Biology and Biochemistry.

The activation of something (esp. an enzyme, a gene, etc.) or initiation of a process (e.g. the germination of a spore) without an external stimulus; automatic activation; self-activation.

ΚΠ

1906 C. Bolduan tr. P. Kyes & H. Sachs in P. Ehrlich Coll. Stud. Immunity xxxv. 460 In this case, therefore, adherent traces of serum cannot possibly effect autoactivation [Ger. Autoactivirung] of the rabbit blood-cells.

1920 Jrnl. Physical Chem. 24 263 The specific effect of the product is on the catalyst... From the point of view of promoter action such a term as ‘auto-activation’ or ‘auto-promotion’ would be more appropriate.

1973 Science 8 June 1022/1 On contact with acid, by a process called autoactivation, pepsinogen is converted to pepsin, which is the enzyme responsible for gastric digestion of proteins.

1989 Mycologia 81 115/2 This spontaneous germination or autoactivation is accompanied by the release of a factor..advancing germination in the rest of the spore population in a concentration-dependent manner.

2005 Genomics & Genetics Weekly (Nexis) 14 Jan. 143 PerA, a member of the AraC-like family of transcriptional regulators, is known to be an activator of its own promoter (autoactivation).

This is a new entry (OED Third Edition, June 2011; most recently modified version published online December 2021).

单词	autoactivation
释义	autoactivationn. Brit. /ˌɔːtəʊaktᵻˈveɪʃn/, U.S. /ˌɔdoʊˌæktəˈveɪʃ(ə)n/, /ˌɑdoʊˌæktəˈveɪʃ(ə)n/ Origin: Formed within English, by compounding; originally modelled on a German lexical item. Etymons: auto- comb. form¹, activation n. Etymology: < auto- comb. form¹ + activation n., originally after German Autoactivirung (1903 in a biological context in the passage translated in quot. 1906, or earlier; now Autoaktivierung ). Compare French autoactivation (1903 (in the context of radioactivity) or earlier), and also German Selbstaktivierung (1904 (in a physics context) or earlier). Compare earlier autoactive adj. and later auto-activate v. Chiefly Biology and Biochemistry. The activation of something (esp. an enzyme, a gene, etc.) or initiation of a process (e.g. the germination of a spore) without an external stimulus; automatic activation; self-activation. ΚΠ 1906 C. Bolduan tr. P. Kyes & H. Sachs in P. Ehrlich Coll. Stud. Immunity xxxv. 460 In this case, therefore, adherent traces of serum cannot possibly effect autoactivation [Ger. Autoactivirung] of the rabbit blood-cells. 1920 Jrnl. Physical Chem. 24 263 The specific effect of the product is on the catalyst... From the point of view of promoter action such a term as ‘auto-activation’ or ‘auto-promotion’ would be more appropriate. 1973 Science 8 June 1022/1 On contact with acid, by a process called autoactivation, pepsinogen is converted to pepsin, which is the enzyme responsible for gastric digestion of proteins. 1989 Mycologia 81 115/2 This spontaneous germination or autoactivation is accompanied by the release of a factor..advancing germination in the rest of the spore population in a concentration-dependent manner. 2005 Genomics & Genetics Weekly (Nexis) 14 Jan. 143 PerA, a member of the AraC-like family of transcriptional regulators, is known to be an activator of its own promoter (autoactivation). This is a new entry (OED Third Edition, June 2011; most recently modified version published online December 2021). < n.1906
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