from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The study of the effects of changes in environment on the growth of microorganisms.
from The Century Dictionary and Cyclopedia
- n. A method devised by Beyerinck for testing the effect of various nutrient media upon bacteria.
From Ancient Greek αὐξάνειν (auxanein, "to grow") and -graphy. (Wiktionary)