Definitions

1. adjective

relating to or situated near the gonad, especially in insects, or related to the perigonal gland.

“In the insect’s reproductive system, the perigonal gland plays a crucial role in producing pheromones.”

2. noun

a perigonal gland or perigonal organ, especially in insects.

“The perigonal of the butterfly is responsible for the production of its distinctive scent.”