The word "dorsulum" is a scientific term commonly used in the field of biology. It refers to a small ridge or knob found on the surface of certain structures. The spelling of "dorsulum" is a combination of the Latin word "dorsum" meaning "back" and the suffix "-ulum" which means "small." The IPA transcription for "dorsulum" is /ˈdɔːrsjʊləm/ with emphasis on the first syllable. The correct pronunciation of the word is crucial in the scientific community to avoid any confusion or misinterpretation of data.