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A chemical secreted by an animal, especially an insect, that influences the behavior or physiology of others of the same species, as by attracting members of the opposite sex or marking the route to a food source.

[Greek pherein, to carry; see bher- in Indo-European roots + (hor)mone.]

pher′o·mon′al adj.


(Biology) biology relating to or constituting a pheromone
References in periodicals archive ?
Tenders are invited for supply of 10,000 pheromonal diffusers for the processionary
To identify pheromone blends, in which each component of the blend may not have pheromonal activity by itself, each component must be chemically identified individually in the active fractions and tested as a blend in behavioral bioassay.
Pheromonal interactions among cordate gametophytes of the lady fern, Athyrium filix-femina.
Theoretically, pheromonal suppression of subordinate males by a dominant male may ensure reproductive dominance; this may have occurred in this population.
2009) provide evidence that ants do perform different types of strikes in different behavioral contexts, which could be modulated in part by responding to different cues when integrating signals from a variety of sources, particularly chemosensory, as ants use pheromonal cues extensively in foraging and nestmate or threat recognition (Jackson and Ratnieks 2006).
Cellulose acetate polymer was less efficient than PVAc and PCL the bioassays performed in this study, when assessed in vivo by electrophysiological responses of insects, in respect to pheromonal retention, and also for environment exposed durability.
Endosulfan exposure disrupts pheromonal systems en the red-spotted newt: a mechanisms for subtle effects of environmental chemicals.
The researchers sought to demonstrate that pheromonal communication (olfaction) between partners might influence endocrine status in fathers since it could signal the presence of offspring and influence the neuroendocrine pathways of paternal behavior.
3) In order to study the significance of chirality in pheromonal communications, the first thing to do was to determine the absolute configuration of the naturally occurring pheromone.
Or maybe the theory of human pheromonal sexual attraction is