Definitions

1. adjective

relating to or resembling a pouch or a sac

“The saccular structure of the leaf was a key feature in its unique design.”

2. noun

a sac or pouch, especially one containing a fluid or gas

“The saccular appendage on the animal’s head served as a sensory organ.”

3. noun

a sac in the brain that contains cerebrospinal fluid, especially one that is a remnant of a developmental structure

“The saccular structure in the brain played a crucial role in regulating body temperature.”