Definitions

1. adjective

relating to or produced by pheromones; having a chemical nature that can be detected by other members of the same species.

“The scientist studied the pheromonal signals used by the ants to communicate with each other.”

2. noun

a substance that elicits a response in another member of the same species, especially by being detected by the vomeronasal organ.

“The researcher analyzed the pheromonal compounds released by the insect to understand its mating behavior.”