noun
: a plant vascular bundle in which (1) phloem surrounds xylem or (2) xylem surrounds phloem — called also respectively (1) amphicribral bundle, (2) amphivasal bundle
noun
: a plant vascular bundle in which (1) phloem surrounds xylem or (2) xylem surrounds phloem — called also respectively (1) amphicribral bundle, (2) amphivasal bundle
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012