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hyaluronidase

 - 5 dictionary results

hy⋅a⋅lu⋅ron⋅i⋅dase

[hahy-uh-loo-ron-i-deys, -deyz]
–noun
1. Biochemistry. a mucolytic enzyme found in the testes, in snake venom, and in hemolytic streptococci and certain other bacteria, that decreases the viscosity of the intercellular matrix by breaking down hyaluronic acid.
2. Pharmacology. a commercial form of this substance, used chiefly to promote the diffusion of intradermally injected drugs.

Origin:
1935–40; hyaluron(ic) + -id- (by analogy with amidase, peptidase, etc.) + -ase
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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hy·a·lu·ron·i·dase   (hī'ə-lŏŏ-rŏn'ĭ-dās', -dāz')   
n.  An enzyme that catalyzes the breakdown of hyaluronic acid in the body, thereby increasing tissue permeability to fluids. Also called spreading factor.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: hy·al·uron·i·dase
Pronunciation: -'rän-&-"dAs, -"dAz
Function: noun
: a mucolytic enzyme that splits andlowers the viscosity of hyaluronic acid facilitating the spreading of fluid through tissues either advantageously (as in the absorption of drugs) or disadvantageously (as in the dissemination ofinfection), that occurs in many normal tissues, in malignant growths, in invasive bacteria, and in certain venoms, and that is used especially to aid in the dispersion of fluids (as local anesthetics)injected subcutaneously for therapeutic purposes called also spreading factor
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

hyaluronidase hy·a·lu·ron·i·dase (hī'ə-l&oobreve;-rŏn'ĭ-dās', -dāz')
n.
Any of three enzymes that catalyze the hydrolysis of hyaluronic acid, thus increasing tissue permeability to fluids. One or more of these enzymes occur in the testes and in spermatozoa.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

hyaluronidase

any of a group of enzymes that catalyze the hydrolysis (chemical decomposition involving the elements of water) of certain complex carbohydrates such as hyaluronic acid and chondroitin sulfates. The enzymes have been found in insects, leeches, snake venom, mammalian tissues (testis being the richest mammalian source), and in bacteria.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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