from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See pectinesterase.
from The Century Dictionary and Cyclopedia
- n. A coagulating ferment found in various fruits and berries, which by its action upon pectose causes the formation of jellies in the juices of the corresponding fruits.
pect(in) + -ase.(American Heritage® Dictionary of the English Language, Fourth Edition)