cotransport
noun
co·trans·port
(ˌ)kō-tran(t)s-ˈpȯrt 
-ˈtran(t)s-ˌpȯrt
: the coupled transport of chemical substances across a cell membrane in which the energy required to move a substance (such as glucose) against a gradient in concentration or in electrical potential is provided by the movement of another substance (such as a sodium ion) along its gradient in concentration or in electric potential
The sodium-linked glucose transporters are largely restricted to the intestine and kidney, where they actively transport glucose against a glucose-concentration gradient by using sodium cotransport as an energy source.—
Peter R. Shepherd and Barbara B. Kahn
see also cotransporter
Peter R. Shepherd and Barbara B. Kahn
cotransport
transitive verb
or co-transport
cotransported or co-transported; cotransporting or co-transporting
glucose cotransported with two Na+ ions
Cite this Entry
“Cotransport.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cotransport. Accessed 30 Oct. 2025.
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