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 (hī′ə-lo͝o-rŏn′ĭ-dās′, -dāz′)
An enzyme that catalyzes the breakdown of hyaluronic acid in the body, thereby increasing tissue permeability to fluids. Also called spreading factor.


(ˌhaɪəlʊˈrɒnɪˌdeɪs; -ˌdeɪz)
(Biochemistry) an enzyme that breaks down hyaluronic acid, thus decreasing the viscosity of the medium containing the acid
[C20: hyalo- + Greek ouron urine + -id3 + -ase]


(ˌhaɪ ə lʊˈrɒn ɪˌdeɪs, -ˌdeɪz)

an enzyme that decreases viscosity in the tissue spaces of the body by breaking down hyaluronic acid: used as an ingredient for diffusing injected drugs.
[1935–40; hyaluron(ic acid) + -id- + -ase]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hyaluronidase - an enzyme (trade name Hyazyme) that splits hyaluronic acid and so lowers its viscosity and increases the permeability of connective tissue and the absorption of fluids
enzyme - any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
References in periodicals archive ?
Similarly, the expression of 3 osteoclastic gene markers for RAW 264.7 cells, osteoclast-associated receptor (OAR), tartrate-resistant acid phosphatase (TRAP), and hyaluronoglucosaminidase 1 (HYA1), was evaluated by the same method.
The AR combination also up-regulated genes associated with formation of extracellular matrix including heparan sulfate proteoglycan 2 (HSPG2) and hyaluronoglucosaminidase 1 (FIYAL1).
Along with CD44, MMPs, VEGF, and hyaluronoglucosaminidase 1 (HYAL1; Table 2(a)), levels decreased in MiaPaCa-2 cells treated with LE.