sonography Syllabification: (so·nog·ra·phy)Pronunciation: /səˈnägrəfē/Definition of sonography noun 1the analysis of sound using an instrument that produces a graphical representation of its component frequencies. 2another term for ultrasonography.Derivatives sonographPronunciation: /ˈsänəˌgraf/ noun sonographicPronunciation: /ˌsänəˈgrafik/ adjective sonography in other Oxford dictionaries Definition of sonography in the British & World English dictionary