Lexic.us

Definition of Leucin

1. n. A white, crystalline, nitrogenous substance formed in the decomposition of albuminous matter by pancreatic digestion, by the action of boiling dilute sulphuric acid, and by putrefaction. It is also found as a constituent of various tissues and organs, as the spleen, pancreas, etc., and likewise in the vegetable kingdom. Chemically it is to be considered as amido-caproic acid.

Definition of Leucin

1. leucine [n -S] - See also: leucine

Medical Definition of Leucin

1. A white, crystalline, nitrogenous substance formed in the decomposition of albuminous matter by pancreatic digestion, by the action of boiling dilute sulphuric acid, and by putrefaction. It is also found as a constituent of various tissues and organs, as the spleen, pancreas, etc, and likewise in the vegetable kingdom. Chemically it is to be considered as amido-caproic acid. Origin: Gr. White. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Leucin

Literary usage of Leucin

Below you will find example usage of this term as found in modern and/or classical literature:

1. Elements of the Comparative Anatomy of Vertebrates by Gustav Mann, Walther Löb, Henry William Frederic Lorenz, Robert Wiedersheim, William Newton Parker, Thomas Jeffery Parker, Harry Clary Jones, Sunao Tawara, Leverett White Brownell, Max Julius Louis Le Blanc, Willis Rodney Whitney, John Wesley Brown, Wi (1906)
"This naturally occurring isomer of leucin has been discovered by Felix Ehrlich.2 While leucin in water is laevo-rotatory, iso-leucin in watery, acid, ..."

2. Hand-book of Chemistry by Leopold Gmelin, Henry Watts (1857)
"leucin, freed with hydrate of potash, gives off ammonia and hydrogen and forms ... An aqueous solution of leucin emits a very offensive odour and forms a ..."

3. A Textbook of physiological chemistry by Olof Hammarsten (1906)
"The leucin obtained by cleavage of protein substances is generally the form which is ... leucin is decomposed on heating, evolving carbon dioxide, ammonia, ..."

4. Chemistry of the Proteids by Gustav Mann (1906)
"This naturally occurring isomer of leucin has been discovered by 'elix Ehrlich.2 ... with leucin, it is twice as strongly dextro-rotatory than in leucin, ..."

5. Botanical Microtechnique: A Hand-book of Methods for the Preparation by A[lbrecht] Zimmermann (1893)
"When leucin was present, tiny, crystalline, doubly refractive scales of this ... These could then be tested with a saturated aqueous solution of leucin (cf. ..."

6. Diagnostic Methods, Chemical, Bacteriological and Microscopical: A Text-book by Ralph Waldo Webster (1912)
"As found in the urine, leucin appears in the form of yellowish, ... Not always do we find crystals of leucin in the sed: ment when the urine contains this ..."

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