oxidation

uncountable

A chemical process involving the addition of oxygen to a compound or the loss of electrons, which always occurs together with reduction.

ruХимический процесс, включающий присоединение кислорода к соединению или потерю электронов, который всегда происходит вместе с восстановлением.esProceso químico que implica la combinación de una sustancia con oxígeno o la pérdida de electrones, y que siempre ocurre junto con la reducción.frProcessus chimique impliquant l'ajout d'oxygène à un composé ou la perte d'électrons, qui se produit toujours conjointement avec la réduction. Il peut aussi désigner la formation de rouille sur un métal.deChemischer Prozess, bei dem ein Stoff Sauerstoff aufnimmt oder Elektronen abgibt und der stets zusammen mit einer Reduktion abläuft.ptProcesso químico em que uma substância perde elétrons ou recebe oxigênio, sempre acompanhado pela redução de outra substância.zh一种化学反应过程，通常指物质与氧结合或失去电子，总是伴随着还原反应发生；也泛指物质被氧化、变质或生锈的过程。arتفاعل كيميائي يفقد فيه العنصر أو المركب إلكترونات أو يكتسب أكسجينًا، ويحدث دائمًا مقترنًا بعملية اختزال.

1. Chemical reaction with oxygen B2 formal scientific

   A chemical reaction where a substance combines with oxygen, often resulting in the loss of electrons.

   • The oxidation of iron leads to rust formation.
   • Oxidation reactions are essential in combustion processes.
   • The wine turned brown due to oxidation when exposed to air.

   ruОкислениеesoxidaciónfroxydationdeOxidationptOxidaçãozh氧化arالأكسدة

   Synonyms: oxidization

   Antonyms: reduction

2. Electron loss in chemistry C1 formal scientific

   The process in which an atom, molecule, or ion loses one or more electrons during a chemical reaction.

   • In the reaction, magnesium undergoes oxidation by losing two electrons.
   • Oxidation always occurs alongside reduction in redox reactions.
   • The oxidation state of carbon changes from -4 to +4 in this process.

   ruОкислениеesOxidación (pérdida de electrones)frOxydation (perte d'électrons)deOxidationptOxidaçãozh氧化arالأكسدة

   Antonyms: reduction

• oxidations plural form
• oxidations' possessive plural form
• oxidation's possessive singular form