Definition, Meaning & Synonyms

frass

noun
/fræs/
Definition
Frass is a term used to describe the excrement or droppings of insects, particularly larvae, and the debris from their feeding activities.
Examples
  • The caterpillar’s frass fell from the leaves onto the ground below.
  • Gardeners sometimes use frass as a natural fertilizer.
  • Identifying frass can help in detecting pest infestations.
Meaning
The term is often used in entomology to refer to the waste produced by insects like caterpillars or beetles, which can also include bits of plant material.
Synonyms
  • Insect droppings
  • Excrement
  • Waste