overactivityn.

Brit.

/ˌəʊv(ə)rakˈtɪvᵻti/, U.S.

/ˈˌoʊvərˌækˈtɪvᵻdi/

Origin: Formed within English, by derivation. Etymons: over- prefix, activity n.

Etymology: < over- prefix + activity n. Compare overact v., overaction n., overactiveness n., and later overactive adj.

Excessive activity; (Medicine and Physiology) abnormal activity of a gland or other organ.

ΘΚΠ

the world > action or operation > doing > [noun] > condition of being active > excessive activity

overactiveness1647

overactivity1834

hyperactivity1888

1834 S. T. Coleridge Marginalia (1998) IV. 336 Alas! thro weakness of body & over-activity of the suggestive mind I now crawl thro' a book.

1865 H. E. Manning in Ess. Relig. & Lit. (1865) 1st Ser. 37 Like the mental over-activity of men dying of consumption.

1897 J. L. Hughes Froebel's Educ. Laws for all Teachers iii. 66 Bodily exertion develops the brain to a considerable extent,..but overactivity of the brain prevents the proper development of the body.

1928 Brit. Med. Jrnl. 18 Feb. 255/1 The functional (hormonic) over-activity of the anterior lobe of the pituitary gland.

1958 W. E. Swinton Fossil Amphibians & Reptiles (ed. 2) xv. 106 The effects of over-activity of certain endocrine glands..might have influenced the viability of some of the older groups.

1992 Jrnl. Abnormal Child Psychol. Feb. 80 Hyperactivity (e.g., overactivity, impulsivity, and overreactivity).

This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).

单词	overactivity
释义	overactivityn. Brit. /ˌəʊv(ə)rakˈtɪvᵻti/, U.S. /ˈˌoʊvərˌækˈtɪvᵻdi/ Origin: Formed within English, by derivation. Etymons: over- prefix, activity n. Etymology: < over- prefix + activity n. Compare overact v., overaction n., overactiveness n., and later overactive adj. Excessive activity; (Medicine and Physiology) abnormal activity of a gland or other organ. ΘΚΠ the world > action or operation > doing > [noun] > condition of being active > excessive activity overactiveness1647 overactivity1834 hyperactivity1888 1834 S. T. Coleridge Marginalia (1998) IV. 336 Alas! thro weakness of body & over-activity of the suggestive mind I now crawl thro' a book. 1865 H. E. Manning in Ess. Relig. & Lit. (1865) 1st Ser. 37 Like the mental over-activity of men dying of consumption. 1897 J. L. Hughes Froebel's Educ. Laws for all Teachers iii. 66 Bodily exertion develops the brain to a considerable extent,..but overactivity of the brain prevents the proper development of the body. 1928 Brit. Med. Jrnl. 18 Feb. 255/1 The functional (hormonic) over-activity of the anterior lobe of the pituitary gland. 1958 W. E. Swinton Fossil Amphibians & Reptiles (ed. 2) xv. 106 The effects of over-activity of certain endocrine glands..might have influenced the viability of some of the older groups. 1992 Jrnl. Abnormal Child Psychol. Feb. 80 Hyperactivity (e.g., overactivity, impulsivity, and overreactivity). This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022). < n.1834
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