os·se·in

[os-ee-in]
noun Biochemistry.
the collagen of bone, remaining after the mineral matter has been removed by treatment with dilute acid.

Origin:
1855–60; < Latin osse(us) osseous + -in2

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World English Dictionary
ossein (ˈɒsɪɪn) [Click for IPA pronunciation guide]
 
n
a protein that forms the organic matrix of bone, constituting about 40 per cent of its matter
 
[C19: from Latin osseus bony, from os bone]

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Relevant Questions
00:10
Ossein is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
American Heritage
Medical Dictionary

ossein os·se·in or os·se·ine (ŏs'ē-ĭn)
n.
The collagen component of bone. Also called ostein.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Ossein is the component which undergoes further processing and purification and becomes gelatin.
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