Definition of proximal convoluted tubule
: the convoluted portion of the vertebrate nephron that lies between Bowman's capsule and the loop of Henle and functions especially in the resorption of sugar, sodium and chloride ions, and water from the glomerular filtrate
— called also proximal tubule
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Merriam-Webster unabridged
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Time Traveler for proximal convoluted tubule
The first known use of proximal convoluted tubule was circa 1899
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