traceryPronunciation: /ˈtreɪs(ə)ri/Definition of tracery noun (plural traceries) [mass noun] Architecture ornamental stone openwork, typically in the upper part of a Gothic window: the rose designs were divided by tracery [count noun] a delicate branching pattern:a tracery of red veinsDerivatives traceried adjective tracery in other Oxford dictionaries Definition of tracery in the US English dictionary