Term: gill reactive oxygen species
Name: gill
Synonyms: gills
Definition: Compound organ that consists of gill filaments, gill lamellae, gill rakers and pharyngeal arches 3-7. The gills are responsible for primary gas exchange between the blood and the surrounding water.
Ontology: Anatomy Ontology [ZFA:0000354]

Name: reactive oxygen species
Synonyms: ROS
Definition: Molecules or ions formed by the incomplete one-electron reduction of oxygen. They contribute to the microbicidal activity of phagocytes, regulation of signal transduction and gene expression, and the oxidative damage to biopolymers.
Ontology: ChEBI [CHEBI:26523]  ( EBI )