Dictionary

heavy chain

noun

Definition of HEAVY CHAIN

:  either of the two larger of the four polypeptide chains comprising antibodies — compare light chain

First Known Use of HEAVY CHAIN

1964

heavy chain

noun \ˈhev-ē-ˈchān\   (Medical Dictionary)

Medical Definition of HEAVY CHAIN

:  either of the two larger of the four polypeptide chains comprising antibodies—compare light chain

Illustration of HEAVY CHAIN

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