Source : Webster's Revised Unabridged Dictionary (1913)

Bacteriological \Bac*te"ri*o*log`ic*al\
   (b[a^]k*t[=e]`r[i^]*[-o]*l[o^]j"[i^]*kal), a.
   Of or pertaining to bacteriology; as, bacteriological
   studies.

Source : WordNet®

bacteriological
     adj : of or relating to bacteriology [syn: {bacteriologic}]