kairomone

https://doi.org/10.1351/goldbook.15841
Semiochemical that is produced by one organism inducing a response in an organism of another species that is unfavorable to the emitter.
See also: allomone, synomone
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1248 [Terms] [Paper]