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lymphokine

n. any of a group of proteins, secreted by lymphocytes, that have a role in cell-mediated immunity by inducing other cells of the immune system to divide. See cytokine.

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Psychology term of the day

May 8th 2024

peptide

peptide

n. a short chain of amino acids linked by peptide bonds. Peptides are usually identified by the number of amino acids in the chain. For example, dipeptides have two amino acids, tripeptides three, tetrapeptides four, and so on. See also polypeptide; protein.