n. [Gr. allelon, one another; chemeia, pert. chemistry and chemical terms]
1. A chemical agent of natural origin involved in interaction between species or individuals; sometimes divided into four subgroups based on whether the emitter, the receiver, or both benefit in the interaction: allomones, kairomones, synomones and apneumones.
2. Xenomone.

Online Dictionary of Invertebrate Zoology. . 2005.

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