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cav·e·o·lin | \ ˌka-vē-ˈō-lən 
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\Medical Definition of caveolin
: any of several membrane proteins that are the major structural components of caveolae The shape and structural organization of caveolae are conferred by caveolin, a dimeric protein that binds cholesterol …— Sean D. Conner et al., Nature, 6 Mar. 2003
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