Ci talk:1003840681

"corrosive" and "corrosiveness" seem to be the main meanings.

CORROSIVE: 「身上會分泌腐蝕性液體」"secrete a corrosive fluid from their bodies."

CORROSIVENESS: 幾乎和硫酸一樣具有高度腐蝕性。a level that made it almost as corrosive as sulfuric acid.

I don't think "corrodation" is correct. I didn't find it in any of three English dictionaries, and there aren't many examples of usage on the Web. But from the examples I saw, it seems to be a synonym of "corrosion", and that's 腐蝕 rather than 腐蝕性. In short, "corrodation" is a rare word that users may not know and may not be able to find in a dictionary, and I think it's also incorrect. In the sentence above, they are talking about a substance that has a high level of corrosiveness (similar to that of sulfuric acid). They are not saying that the substance has a high level of corrodation; i.e. it is not highly corroded.

Here are two more examples where 腐蝕性 means "corrosiveness" (ability to cause damage) and does not mean "corrodation" (damage).

部分清潔劑具有腐蝕性或毒性，使用前應小心防範。Some cleansers are corrosive or poisonous and should be used with care.

不但耗電，也容易爆炸、腐蝕性強， This not only uses up a lot of electricity, there is high risk of explosion, not to mention that trichlorosilane is highly corrosive.

See also the entries in Key and Grand Ricci. Richwarm (talk) 13:08, 19 July 2019 (UTC)