[ Gr.
a. Exhibiting hyperactivity. [ PJC ]
n. An unusually high level of activity; -- used especially with respect to children who move around frequently and do not sit still very long, most noticeably in school. It is sometimes associated with attention deficit disorder. [ PJC ]
‖n. [ NL., fr. Gr.
Active hyperæmia,
Passive hyperæmia,
--
‖n. [ NL., fr. Gr.
‖n.;
n. [ Gr. &unr_;, fr. &unr_; to cover with a shield;
a. [ hyper- + baric. ]
a. Of or pertaining to an hyperbaton; transposed; inverted. [ 1913 Webster ]