'Pessuli' definitions:

Definition of 'Pessuli'

From: GCIDE

Pessulus \Pes"su*lus\, n.; pl. Pessuli. [L., a bolt.] (Anat.) A delicate bar of cartilage connecting the dorsal and ventral extremities of the first pair of bronchial cartilages in the syrinx of birds. [1913 Webster]