ymasiad

== Welsh == === Etymology === From ymasio (“to fuse”) +‎ -iad. === Pronunciation === (North Wales) IPA(key): /əˈmaʃad/ (South Wales) IPA(key): /əˈmasjad/, /əˈmaʃad/ Rhymes: -aʃad === Noun === ymasiad m (plural ymasiadau) (physics) (atomic) fusion === Mutation ===