frass

American  

[fras] / fræs /

noun

1. insect excrement.

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frass British  

/ fræs /

noun

1. excrement or other refuse left by insects and insect larvae

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Etymology

Origin of frass

1850–55; originally, the refuse and excrement of boring or leaf-eating insects < German Frass insect damage, corrosion, noun from base of fressen to eat (of animals); fress, fret ¹

Example Sentences

But it is this strong smell, as well as the smell associated with their insect poo - frass - that makes them ideal to be found by sniffer dogs.

From BBC

Also, their manure, known as frass, can be used as fertiliser.

From BBC

In Kenya, Project Mila is a social enterprise using fly larvae to tackle Mombasa's mounting food waste problem, while also supplying frass as fertiliser to local farmers.

From BBC

To that simulated regolith, Mr. Mendoza had added fertilizer called frass — the waste left after black soldier fly larvae are finished eating and digesting.

From New York Times

The goal for Mr. Mendoza and his collaborators was to investigate whether frass and the bugs that created it might someday help astronauts grow food and manage waste on Mars.

From New York Times