FERMENT n.
rule soluble in glycerin and precipitated by alcohol. In action they are catalytic and, mainly, hydrolytic. Good examples are pepsin of the dastric juice, ptyalin of the salvia, and disease of malt. globular proteins, capable of catalyzing a wide variety of chemical reactions, not merely hydrolytic. The full set of enz…
GROUND n.
everal Australian parrakeets, of the genera Callipsittacus and Geopsittacus, which live mainly upon the ground. -- Ground pearl (Zoöl.), an insect of the family Coccidæ (Margarodes formicarum), found in ants' nests in the Bahamas, and having a shelly covering. They are strung like beads, and made into necklaces by the…