Allomones are chemicals that an organism releases and alters the behavior of another organism. Synonyms for the word "allomone" include "semiochemicals," "infochemicals," and "allelochemicals." Semiochemicals are used to communicate between individuals of different species and can have a positive or negative impact on their behavior. Infochemicals are chemical signals that convey information about the environment for an organism. Allelochemicals are molecules that affect the physiology and behavior of other organisms. These synonyms are essential terms used in studying chemical communication in the natural world and are beneficial in understanding how species interact with each other through chemical signals.