a plant that absorbs toxins, such as heavy metals, to a greater concentration than that in the soil in which it is growing
[hahy-per-uh-sid-i-tee] /ˌhaɪ pər əˈsɪd ɪ ti/ noun, Pathology. 1. excessive , as of the gastric juice. /ˌhaɪpərəˈsɪdɪtɪ/ noun 1. excess acidity of the gastrointestinal tract, esp the stomach, producing a burning sensation hyperacidity hy·per·a·cid·i·ty (hī’pər-ə-sĭd’ĭ-tē) n. Abnormally high acidity, as of the stomach.
[hahy-per-ak-tiv] /ˌhaɪ pərˈæk tɪv/ adjective 1. unusually or abnormally : a company’s hyperactive growth; the child’s hyperactive imagination. 2. (of children) displaying exaggerated physical activity sometimes associated with neurologic or psychologic causes. 3. . /ˌhaɪpərˈæktɪv/ adjective 1. abnormally active adj. 1852, from hyper- + active. hyperactive hy·per·ac·tive (hī’pər-āk’tĭv) adj.
[hahy-per-ak-tiv-i-tee] /ˌhaɪ pər ækˈtɪv ɪ ti/ noun 1. the condition of being . 2. . n. 1852, from hyper- + activity. hyperactivity hy·per·ac·tiv·i·ty (hī’pər-āk-tĭv’ĭ-tē) n. A general restlessness or excess of movement, as that in children with minimal brain dysfunction or hyperkinesis. hyperactivity (hī’pər-āk-tĭv’ĭ-tē) An abnormally high level of activity or excitement shown by a […]
hyperacusis hy·per·a·cu·sis (hī’pər-ə-kōō’sĭs, -kyōō’-) n. Abnormally acute hearing due to heightened irritability of the sensory neural mechanism.