iselydd

== Welsh == === Etymology === isel (“low”) +‎ -ydd === Pronunciation === (North Wales) IPA(key): /ˌɪˈsɛlɨ̞ð/ (South Wales) IPA(key): /ɪˈseːlɪð/, /ɪˈsɛlɪð/ === Noun === iselydd m (plural iselyddion) (pharmacology) depressant ==== Derived terms ==== gwrthiselydd (“antidepressant”) ==== Related terms ==== iselder (“depression”) === Mutation ===