[hahy-uh-loo-ron-i-deys, -deyz] /ˌhaɪ ə lʊˈrɒn ɪˌdeɪs, -ˌdeɪz/
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.
Pharmacology. a commercial form of this substance, used chiefly to promote the diffusion of intradermally injected drugs.
an enzyme that breaks down hyaluronic acid, thus decreasing the viscosity of the medium containing the acid
hyaluronidase hy·a·lu·ron·i·dase (hī’ə-lu-rŏn’ĭ-dās’, -dāz’)
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.
[hahy-an-is] /haɪˈæn ɪs/ noun 1. a town in SE Massachusetts, on Nantucket Sound: summer resort.
- HY antigen
[eych-wahy] /ˈeɪtʃˈwaɪ/ noun, Immunology. 1. an antigen encoded by a gene on the Y (male) chromosome, active in the development of male structures.
- H-y antigen
H-Y antigen n. An antigen factor, dependent on the Y-chromosome, responsible for differentiating the human embryo into the male phenotype by inducing the embryonic gonad to develop into a testis.
[hahy-uh ts-vil] /ˈhaɪ ətsˌvɪl/ noun 1. a city in central Maryland.