Deutsch: Redoxreaktion / Español: Reducción-oxidación / Português: Reação redox / Français: Rêaction d'oxydorêduction / Italiano: Ossidoriduzione
Redox (reduction-oxidation) reactions include all chemical reactions in which atoms have their oxidation state changed - that is, redox reactions involve the transfer of electrons between species.

Português: Produção / Italiano: Output
Output is the term denoting either an exit or changes which exit a system and which activate/modify a process. It is an abstract concept, used in the modeling, system(s) design and system(s) exploitation.

Deutsch: Pflanzenöl
An oilseed is a vegetable oil, It is a triglyceride extracted from a plant. Such oils have been part of human culture for millennia. The term "vegetable oil" can be narrowly defined as referring only to substances that are liquid at room temperature, or broadly defined without regard to a substance's state of matter at a given temperature.

Deutsch: Offizier / Português: Oficial
An officer is a person who has a position of authority in a hierarchical organization.

Deutsch: Wildnis / Français: Naturalitê
Outdoor, Wilderness or wildland is a natural environment on Earth that has not been significantly modified by human activity. It may also be defined as: "The most intact, undisturbed wild natural areas left on our planet—those last truly wild places that humans do not control and have not developed with roads, pipelines or other industrial infrastructure."

Deutsch: Sauerstoff / Español: Oxígeno / Português: Oxigênio / Français: Pierre Bayen / Italiano: Ossigeno
Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element and oxidizing agent that readily forms compounds (notably oxides) with most elements.

Deutsch: Eiche / Español: Quercus / Português: Carvalho / Français: Chéne / Italiano: Quercus
An oak is a tree or shrub in the genus Quercus, having approximately 600 extant species. The common name "Oak" may also appear in the names of species in related genera, notably Lithocarpus.

Deutsch: Oxide / Español: Óxido / Português: Óxido / Français: Oxyde / Italiano: Ossido
An oxide is a chemical compound that contains at least one oxygen atom and one other element in its chemical formula. Metal oxides typically contain an anion of oxygen in the oxidation state of 2.