What does bacteriolytic mean?
Bacteriolytic is a technical adjective meaning that a substance destroys bacteria by causing lysis, the rupture or dissolution of their cell walls or membranes. The term is used in microbiology, pharmacology, and medical research when the mechanism of antibacterial action matters. A bacteriolytic substance is therefore distinguished from one that merely prevents bacteria from multiplying or from a general agent described as bactericidal. Laboratory tests may measure bacteriolytic activity or effect, and enzymes with this property are often described as bacteriolytic. In medicine, the word commonly characterizes antibiotics whose action disrupts bacterial cell structure, leading to cell death. Although the word is closely associated with broad antibacterial language, its defining feature is the specifically lytic mechanism rather than bacterial death alone. For readers encountering it in technical literature, the essential idea is that “-lytic” points to dissolution or rupture.
adjectiveCausing the destruction of bacteria through lysis, the rupture or dissolution of their cell walls or membranes.
- Causing the destruction of bacteria by disrupting their cell walls or membranes so that the cells rupture or dissolve.
"The bacteriolytic action of the antibiotic caused the bacterial cells to rupture rapidly."
"The enzyme showed strong bacteriolytic activity against Gram-positive bacteria."
"Cephalosporins exert a bacteriolytic effect by interfering with bacterial cell-wall synthesis."
Bacteriolytic names a microscopic demolition crew: unlike agents that merely stop bacteria growing, it specifically describes substances that break their cells apart.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does bacteriolytic come from?
The word combines the scientific combining form bacterio-, derived from Greek bakterion, meaning “little stick,” with -lytic, associated with Greek lysis and lytikos, referring to loosening or dissolving. It developed within the scientific vocabulary of bacteriology as a precise description of agents that destroy bacteria through lysis. Its component roots are also visible in related English words such as bacterium, bacteriology, lysis, and lytic.
How bacteriolytic is actually used
This is a specialized technical adjective used chiefly in microbiology, pharmacology, and medicine. It is more precise than a general term for bacteria-killing substances because it identifies lysis as the mechanism of destruction.
Easily confused with bacteriolytic
Bactericidal means capable of killing bacteria, whereas bacteriolytic more specifically describes an agent that destroys them through lysis.
A bacteriostatic agent prevents bacterial growth without necessarily killing the cells, while a bacteriolytic agent causes their lysis.