Reference entry
Quorum Sensing
Plain-English definitions of microbiome research vocabulary — the terms you'll see across articles, testing services, and probiotic claims.
Glossary context
Defined
in the site-wide microbiome glossary
Definition
A cell-to-cell communication system used by bacteria to coordinate behaviour based on population density. Bacteria release and detect signalling molecules, allowing them to collectively activate gene expression for biofilm formation, virulence, or other group behaviours.