Word forms: plural diagnoses. variable noun. Diagnosis is the discovery and naming of what is wrong with someone who is ill or with something that is not working properly. I need to have a second test to confirm the diagnosis. Symptoms may not appear for some weeks, so diagnosis can be difficult.
Definition - What does Copper Corrosion mean? Copper corrosion is the corrosion of materials made of copper or copper alloys. With exposure to atmosphere, copper oxidizes, causing bright copper surfaces to tarnish. After a few years, this tarnish gradually changes to dark brown or black, and finally to green.
3) Copper is resistant to corrosion (it is very unreactive). Uses. 1) Copper is the main metal for electrical wiring (compare with aluminium). 2) Copper is malleable which makes it an ideal material for gas pipes and water pipes.Copper is below hydrogen in the reactivity series and therefore it does not react with water. Copper is the metal used for plumbing in houses.ses. 1) Copper is the main metal for electrical wiring (compare with aluminium). 2) Copper is malleable which makes it an ideal material for gas pipes and water pipes. Copper is below hydrogen in the reactivity series and therefore it does not react with water.