bladderless
/ˈblædərˌles/Definitions
1. adjective
Lacking a bladder, especially as a characteristic of a certain species or in a particular anatomical context.
“The bladderless salamander is a unique creature in the world of amphibians.”
2. adjective
Characterized by the absence of a bladder, especially in the context of urinary or excretory systems.
“The bladderless design of the filtration system made it more efficient and compact.”