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Definition of tubule
: a small tube; especially : a slender elongated anatomical channel
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Recent Examples of tubule from the Web
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A tubule connected to the stylet acts as a tow line, which the predatory cell uses to draw the prey cell close enough to strike—at which point the predatory cell actually unzips its own cell membrane to engulf the prey cell.
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While the aphid excretory system isn’t widely studied, research so far suggests that the bugs have genes that seem similar to the ones in other insects’ Malpighian tubules.
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But for some reason, the tubules themselves have been lost to evolutionary history.
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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.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tubule.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of tubule
Latin tubulus, diminutive of tubus
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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