cephalin

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ceph·a·lin

 (sĕf′ə-lĭn) also keph·a·lin (kĕf′-)
n.
Any of a group of phospholipids found especially in the white matter of the brain and spinal cord.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

cephalin

(ˈsɛfəlɪn; ˈkɛf-) or

kephalin

n
(Biochemistry) a phospholipid, similar to lecithin, that occurs in the nerve tissue and brain. Systematic name: phosphatidylethanolamine
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ceph•a•lin

(ˈsɛf ə lɪn)

n.
a phospholipid of the cell membrane, abundant esp. in the brain.
[1895–1900]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Phosphatidyl choline is also commonly known as lecithin and phosphatidyl ethanolamine, phosphatidyl serine and phosphatidyl inositol as cephalins. Viability and motility of spermatozoa depends on the integrity of the mitochondrial sheath, of which phospholipids are a major component.