Definition of tubule
: a small tube; especially : a slender elongated anatomical channel
From the M-W Editors
Recent Examples of tubule from the Web
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Cockroaches possess structures called Malpighian tubules, which pull wastes from their internal liquids; the liquids return to circulation, and the wastes are excreted in solid or semi-solid form, and can contain excess nitrogen.
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Origin and Etymology of tubule
Latin tubulus, diminutive of tubus
First Known Use: 1677
Medical Dictionary
tubule
playMedical Definition of tubule
: a small tube; especially : a slender elongated anatomical channel
Learn More about tubule
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Britannica.com: Encyclopedia article about tubule
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