\-ˌga-ˌlak-ˈt(y)u̇r-ə-ˌnās, -gə-ˈlak-tyər-ə-, -ˌnāz\
: an enzyme that hydrolyzes the glycosidic linkages of polymerized galacturonic acids (as pectic acid) and that occurs especially in microorganisms—compare pectinase
Seen & Heard
What made you want to look up polygalacturonase? Please tell us where you read or heard it (including the quote, if possible).