kairomone

noun

kai·​ro·​mone ˈkī-rə-ˌmōn 

-rō-

: a chemical substance emitted by one species and especially an insect or plant that has an adaptive benefit (such as a stimulus for oviposition) to another species

Word History

Etymology

Greek kairos critical time, opportunity + English -mone (as in pheromone)

First Known Use

1970, in the meaning defined above