plural of jotunn

Written as, or like, a brief informal sketch.

(mineralogy) A charnockitic monzodiorite

plural of jotisi

A traditional Hindu astrologer.

(geology) Belonging to the sediments of a group of Precambrian rocks more specifically assigned to the Mesoproterozoic Era (Riphean), and including the oldest known sediments in the Baltic area that have not been subject to metamorphism.