Bacterium capitum is a phrase that is used to describe a bacterial infection that affects the scalp. The correct spelling of this phrase can be explained using the IPA phonetic transcription. "Bacterium" is pronounced as "bækˈtɪəriəm," while "capitum" is pronounced as "kaˈpɪtəm." The stress in "capitum" falls on the second syllable, which is marked with a ˈ above the "p." This spelling ensures that the phrase is correctly pronounced in a medical context, and helps to avoid confusion and errors.