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conchiolin

American  
[kong-kahy-uh-lin] / kɒŋˈkaɪ ə lɪn /

noun

Biochemistry.
  1. a fibrous protein that forms the iridescent inner layer, as mother-of-pearl, in the shells of mollusks.


conchiolin British  
/ kɒŋˈkaɪəlɪn /

noun

  1. a fibrous insoluble protein that forms the basic structure of the shells of molluscs. Formula: C 30 H 48 O 11 N 9

"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

Etymology

Origin of conchiolin

1865–70; conch + -i- + -ol- (< Latin -olus -ole 1 ) + -in 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The mollusc deposits layers of aragonite and conchiolin, which together form nacre, also know as mother-of-pearl.

From BBC

In the first place, it should be understood that both conchiolin and aragonite are translucent, that is, they pass light to a certain extent.

From Project Gutenberg

Typical albuminoids are gelatin, keratin, elastin, fibroin, spongin and conchiolin.

From Project Gutenberg