ocsidydd

== Welsh == === Etymology === From ocsid (“oxide”) +‎ -ydd. === Pronunciation === (North Wales) IPA(key): /ɔkˈsɪdɨ̞ð/ (South Wales) IPA(key): /ɔkˈsiːdɪð/, /ɔkˈsɪdɪð/ Rhymes: -sɪdɨ̞ð === Noun === ocsidydd m (plural ocsidyddion) (chemistry) oxidising agent, oxidiser oxidant Antonym: rhydwythydd oxidant Antonym: gwrthocsidydd ==== Related terms ==== rhydwythydd (“reducing agent”) gwrthocsidydd (“antioxidant”) === References === R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke, et al., editors (1950–present), “ocsidydd”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies