Usage Note
Bacteriológico is used primarily in medical and military contexts: guerra bacteriológica (bacteriological warfare), análisis bacteriológico (bacteriological analysis). It agrees in gender and number: arma bacteriológica (f). The root noun is bacteria (f); the science is bacteriología (f).
Examples
"El laboratorio realiza análisis bacteriológicos del agua."
Natural Translation
The laboratory performs bacteriological analyses of the water.

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