A very small duct or tubular passage, especially in glands or organs.
Diminutive form of 'duct' with the Latin suffix '-ule' meaning 'small.' Created in medical and anatomical vocabulary to describe the smallest branches of ductal systems.
Ductules are like the 'capillaries' of the duct world—so tiny you need a microscope to see them, but they're crucial for connecting main ducts to the cells that produce saliva, bile, or other secretions.
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