plural noun Si·syr·i·dae \sə̇ˈsirəˌdē\

Definition of Sisyridae

  1. :  a family of neuropterous insects having larvae that feed on freshwater sponges

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Origin and Etymology of sisyridae

New Latin, from Greek sisyra fur, goat's hair + New Latin -idae; from the hairy covering of the body and wings

Seen and Heard

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to cast off or become cast off

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