Medical Dictionary


noun fi·ber

Medical Definition of FIBER

:  a thread or a threadlike structure or object: as a :  a strand of nerve tissue :  axon, dendrite b :  one of the filaments composing most of the intercellular matrix of connective tissue c :  one of the elongated contractile cells of muscle tissue
:  mostly indigestible material in food that stimulates the intestine to peristalsis—called also bulk, dietary fiber, roughage

Variants of FIBER

fi·ber or chiefly British fi·bre \ˈfī-bər\
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