fishkill

or fish kill

[ fish-kil ]
/ ˈfɪʃˌkɪl /

noun

the sudden destruction of large quantities of fish, as by pollution.

Origin of fishkill

First recorded in 1960–65; fish + kill1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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