Definition

Noun: A chemical substance produced and released into the environment by an animal, especially an insect, that affects the behavior or physiology of other animals of the same species. Pheromones act as signals for communication.

Usage

Pheromones are used to trigger specific responses in members of the same species, such as attracting a mate, marking a trail, signaling danger, or establishing social hierarchy. The word is typically used in scientific, biological, and entomological contexts.

Examples

• Ants use pheromones to lay down a trail for other ants to follow to a food source.
• The pheromone released by the queen bee prevents other female bees in the hive from becoming fertile.
• Scientists are studying insect pheromones to develop non-toxic methods of pest control.

Advanced Usage

• Pheromone trap: A device that uses a synthetic version of a pheromone to lure and trap specific insects, often for monitoring or controlling pest populations.
  • Farmers use pheromone traps to monitor moth populations in their orchards.
• Sex pheromone: A specific type of pheromone released to attract a potential mate.
  • The sex pheromone of the silkworm moth is one of the most well-studied chemical signals.

Variants and Related Words

• Pheromonal (adjective): Relating to or involving pheromones.
  • The researchers observed a distinct pheromonal response in the test subjects.

Synonyms

• Chemical signal
• Semiochemical (a broader term for chemicals that carry messages between organisms)

Related Concepts

• Allelochemical: A chemical substance produced by one organism that affects the behavior or physiology of an organism of a species. (This contrasts with a pheromone, which affects the same species.)
• Hormone: A chemical substance produced within an organism that regulates physiology or behavior . (Pheromones are for communication between individuals.)

Noun

1. a chemical substance secreted externally by some animals (especially insects) that influences the physiology or behavior of other animals of the same species