noun
sterilizing power; germicidal efficacy; bactericidal strength
Refers to the ability of a substance or method to kill microorganisms, especially bacteria. Common in medical, hygiene, and product contexts.
この消毒液は殺菌力が強い。
This disinfectant has strong sterilizing power.
殺菌力を調べるために実験を行った。
We conducted an experiment to examine the bactericidal efficacy.
抗菌 means 'antibacterial' and often refers to inhibiting bacterial growth, whereas 殺菌力 emphasizes the strength of actually killing bacteria.
Compound of 殺菌 (さっきん, 'sterilization') and 力 (りょく, 'power, strength').