Definition of flittermouse in English:

flittermouse

noun

  • old-fashioned term for bat (sense 1)
    • ‘Farmers report seeing the small Flittermouse diving through clusters of bugs near their houselantern, seeming to sift out the larger flying beetles from the smaller gnats and flies with a meticulous discrimination.’

Origin

Mid 16th century: on the pattern of Dutch vledermuis or German Fledermaus.

Pronunciation

flittermouse