Definition
cornicle
noun
- One of a pair of small, tube-like or horn-like appendages on the posterior end of an aphid's body, used for secreting defensive substances.
Usage: zoology; entomology; also called siphunculus
Examples
- The aphid's cornicles release a waxy secretion that deters predators.
- Under the microscope, the cornicles of the aphid were clearly visible at the rear of its body.
- Entomologists use the structure of cornicles to help identify different aphid species.
- The cornicle is an important diagnostic feature in aphid taxonomy.