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| Symbol: Gd; atomic weight: 157.25; atomic number: 64 |
| Symbol: Eu; atomic weight: 151.96; atomic number: 63 |
pepsin pep·sin or pep·sine (pěp'sĭn)
n.
Any of various digestive enzymes found in gastric juice that catalyze the hydrolysis of proteins to peptides.
A substance containing pepsin, obtained from the stomachs of hogs and calves and used as a digestive aid.
| pepsin (pěp'sĭn) Pronunciation Key
Any of various digestive enzymes found in vertebrate animals that catalyze the hydrolysis of proteins to peptides. |