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Here are all the possible meanings and translations of the word RO. Princeton's WordNet(0.00 / 0 votes)Rate this definition: Ro(noun) an artificial language for international use that rejects all existing words and is based instead on an abstract analysis of ideas.
Reactive oxygen species (ROS) is a collective term that describes the chemical species that are formed upon incomplete reduction of oxygen and includes the superoxide anion (O 2â), hydrogen peroxide (H 2 O 2) and the hydroxyl radical (HO â¢).racking pathway outputs and physiological function is key to establishing the exact nature of the chemical(s) that are sensed, the knowledge of which is essential to understand the specificity of a redox mechanism. accordingly, not all redox-regulatory mechanisms fit this definition of a ROS homeostatic pathway.