Also found in: Thesaurus, Medical.
Related to overactivity: detrusor overactivity


Active to an excessive or abnormal degree: an overactive pituitary gland; an overactive imagination.

o′ver·ac·tiv′i·ty n.


a level of activity that is too high or greater than normal; hyperactivity
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.overactivity - excessive activity; "overactivity of the sebaceous glands causes the skin to become oily"
bodily function, bodily process, body process, activity - an organic process that takes place in the body; "respiratory activity"
References in periodicals archive ?
Researchers suspect that abuse or other extreme childhood stress lead to overactivity of various stress hormones, thus raising the likelihood of later depression.
But the new, carefully controlled study shows that some artificial additives increase hyperactivity and decrease attention span in a wide range of children, not just those for whom overactivity has been diagnosed as a learning problem.
What causes it isn't known, but overactivity of gut muscles or nerves is thought to play a role, often getting worse with stress.
Beginning in the 1970s, deficits in attention span and distractibility have supplanted motor overactivity, and they have become the defining feature of the disorder.
5) Its use continued in tetanus patients for another decade, (6) however, and was overtaken by halothane anesthesia, which seemed to suppress the sympathetic overactivity of severe tetanus (the "horrors").
org) recruited patients with refractory urge urinary incontinence and urodynamic evidence of detrusor overactivity incontinence (DOI) to a 2:1 placebo controlled cystoscopic injection of botulinum toxin A.
Counterintuitive or not, the study may have uncovered individuals susceptible to adverse outcomes stemming from overactivity in the folate metabolism pathway during a critical stage of embryonic neurodevelopment.
Those with tonic muscle overactivity producing sustained abnormal posturing were found to be most at risk of adaptive shortening.
NMood changes: for some people bursts of overactivity and cheerfulness (known as hypomania) in spring and autumn.
Anterior cingulate gyrus overactivity causes water retention and decreased gut motility leading to constipation, but is ameliorated by selective serotonin reuptake inhibitors.
Dough stickiness testing allows manufacturers to quantify the effects of overmixing, addition of excess water, overactivity of proteoytic enzymes, differences in wheat varieties and composition.
This produces overactivity in the brain reward pathway.