cruciformPronunciation: /ˈkruːsɪfɔːm/Definition of cruciform adjective having the shape of a cross:a cruciform sword (of a church) having a cross-shaped plan with a nave and transepts. noun a thing shaped like a cross. Origin: mid 17th century: from Latin crux, cruc- 'cross' + -iformcruciform in other Oxford dictionaries Definition of cruciform in the US English dictionary