The term lobe generally refers to a projecting part of an object, but it can have more specific meanings. Biology lobe (anatomy) Telecommunication An identifiable segment of an antenna radiation pattern. (Note: A lobe's characterized by a localized maximum bounded by identifiable nulls.) A pair of channels between a data station and a lobe attaching unit, one channel for sending and one for receiving, as seen from the point of view of the attached data station. Astronomy The Roche lobe's th… (More on Lobe)