The Collaborative International Dictionary
Bacterioscopy
Bacterioscopy \Bac*te`ri*os"co*py\ (b[a^]k*t[=e]`r[i^]*[o^]s"k[-o]*p[y^]), n. [Bacterium + -scopy; fr. Gr. bakth`rion, ba`ktron, a staff + skopei^n to view.] (Biol.)
The application of a knowledge of bacteria for their detection and identification, as in the examination of polluted water.
Microscopic examination or investigation of bacteria. -- Bac*te`ri*o*scop"ic, a. -- *scop"ic*al*ly, adv. -- Bac*te`ri*os"co*pist, n.
Wiktionary
bacterioscopy
n. The use of microscopy to study bacterium