Bacterioscopy
Bacterioscopy (bak*tē`ri*os"ko*py) , noun
[Bacterium + -scopy; from Greek bakth`rion, ba`ktron, a staff + skopei^n to view.]
1.
(Biology) The application of a knowledge of bacteria for their detection and identification, as in the examination of polluted water.
2.
Microscopic examination or investigation of bacteria.