Definition of lectin

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< lectern

lection >

lec·tin

n) KEY

NOUN:

Any of several plant proteins that bind to specific carbohydrate groups on proteins or on cell membranes and are used in the laboratory to isolate glycoproteins, to stimulate proliferation of lymphocytes, and to agglutinate red blood cells.

ETYMOLOGY:
Latin lctus, past participle of legere, to select ; see select + -in

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