Definition of chinch in US English:

chinch

(also chinch bug)

noun

  • A plant-eating ground bug that forms large swarms on grasses and rushes.

    Two species in the family Lygaeidae, suborder Heteroptera: the American Blissus leucopterus, which is a major pest of cereal crops, and the European Ischnodemus sabuleti

    • ‘The chinch bug is a native North American insect that can destroy cultivated grass crops, especially sorghum and corn, and occasionally small grains, such as wheat and barley.’
    • ‘Soybeans are not a chinch bug host and would be a better choice in these areas.’
    • ‘He chuckles, ‘There's nothing a quail likes as much as a chinch bug.’’
    • ‘The product works as either a preventive or curative control for fire ants, mole crickets, sod webworms, cutworms, armyworms and chinch bugs.’
    • ‘Although chinch bug numbers are not high in most fields, growers should check fields frequently during the next couple of weeks to identify problem fields.’

Origin

Early 17th century (in the sense ‘bedbug’): from Spanish chinche, from Latin cimex, cimic-.

Pronunciation

chinch

/tʃɪn(t)ʃ//CHin(t)SH/