1. (Science: prefix) Signifying over, above, high, beyond, excessive, above normal; as, hyperphysical, hyperthyrion; also abnormally great, excessive; as, hyperaemia, hyperbola, hypercritical, hypersecretion.
2. (Science: chemistry) a prefix equivalent to super- or per-; as hyperoxide, or peroxide.
Origin: gr. Over, above; akin to L. Super, E. Over.