Bot. a pitcherlike leaf or structure, as of the pitcher plant or bladderwort
Origin of ascidiumModern Latin from Classical Greek askidion, diminutive of askos: see asco-
nounpl. as·cid·i·a, Botany
A pitcher-shaped or bottle-shaped part or organ, such as the hollow tubular leaf of a pitcher plant.
Origin of ascidiumNew Latin from Greek askidion diminutive of askos wineskin
New Latin, from ascus