Scutum Syllabification: (Scu·tum)Pronunciation: /ˈsk(y)o͞otəm/ AstronomyDefinition of Scutum a small constellation (the Shield) near the celestial equator, lying in the Milky Way between Aquila and Serpens. (as genitive Scuti /ˈsk(y)o͞otē, -ˌtī/) used with a preceding letter or numeral to designate a star in this constellation:the star Beta ScutiOrigin:LatinScutum in other Oxford dictionaries Definition of Scutum in the British & World English dictionary