superoxide

superoxide — (= superoxide radical) Term used interchangeably for the superoxide anion.O2 , or the weak acid HO2.. Superoxide is generated both by prokaryotes and eukaryotes, and is an important product of the metabolic burst of neutrophil leucocytes. A very… …   Dictionary of molecular biology

Superoxide — Su per*ox ide, n. (Chem.) See {Peroxide}. [Obs.] [1913 Webster] …   The Collaborative International Dictionary of English

superoxide — [so͞o΄pəräk′sīd] n. a compound containing the paramagnetic, monovalent, negative free radical O2 …   English World dictionary

Superoxide — Lewis electron configuration of superoxide. The six outer shell electrons of each oxygen atom are shown in black; one electron pair is shared (middle); the unpaired electron is shown in the upper left and the additional electron conferring a… …   Wikipedia

superoxide — An oxygen free radical, O2−, which is toxic to cells. s. dismutase (SOD) an enzyme that catalyzes the dismutation reaction, 2O2 − + 2H+ → H2O2 + O2; there are three isozymes of SOD: an extracellular form (ECSOD) that conta …   Medical dictionary

superoxide — noun 1. a metallic oxide containing the univalent anion O2 • Hypernyms: ↑oxide 2. the univalent anion O2 much of the O2 supporting cellular respiration is reduced to the superoxide anion O2 • Syn: ↑superoxide anion • Hypernyms: ↑ …   Useful english dictionary

superoxide — noun Date: circa 1847 the monovalent anion O2 or a compound containing it < potassium superoxide KO2 > …   New Collegiate Dictionary

superoxide — superoksidas statusas T sritis chemija formulė MO₂ atitikmenys: angl. hyperoxide; superoxide rus. гипероксид; надперекись ryšiai: sinonimas – hiperoksidas sinonimas – dioksidas (1–) …   Chemijos terminų aiškinamasis žodynas

Superoxide — Hyperoxide (griech. hyper: über) sind chemische Verbindungen, die das vom Sauerstoff abgeleitete Anion O2 enthalten. Der Begriff Superoxid für Hyperoxide ist veraltet und sollte nicht mehr gebraucht werden. Der Sauerstoff hat in diesen… …   Deutsch Wikipedia

superoxide — /sooh peuhr ok suyd, sid/, n. Chem. 1. a compound containing the univalent ion O2 . 2. peroxide (def. 1a, b). Also called hyperoxide. [1840 50; SUPER + OXIDE] * * * …   Universalium

superoxide — noun a) A peroxide b) The univalent anion, O, obtained from molecular oxygen by adding an electron; any compound containing this anion …   Wiktionary