[ lahy-sin ]
/ ˈlaɪ sɪn /

noun Immunology, Biochemistry.

an antibody causing the disintegration of erythrocytes or bacterial cells.

Origin of lysin

First recorded in 1895–1900; lys- + -in2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lysin

British Dictionary definitions for lysin


/ (ˈlaɪsɪn) /


any of a group of antibodies or other agents that cause dissolution of cells against which they are directed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for lysin


[ līsĭn ]


An antibody that is capable of causing the destruction or dissolution of red blood cells, bacteria, or other cellular elements.
A substance that causes lysis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.