flittermouse , also: flitter-mouse

"Damned flittermouse," he said, making the sun-sign on his breast to ward off the evil omen.

Tolkien's use of words like 'flittermouse' for bat in the poem mark an important opening of his philological interests into his fairy world.

And the king saw in the lamplight a grisly face with the teeth and nostrils of a flittermouse, that leaned in through one of the cabin-ports.

He embarks on a quest with Prince Gules, aided by a unicorn and a Flittermouse (a mouse with wings) to retrieve all three.

The Flittermouse was a high-wing braced pusher monoplane powered by a 25 hp Scott Squirrel piston engine with a pusher propeller.

He heard the far-off shouting of his men as he went; but his own voice was faint and thin as that of a flittermouse when he sought to reply.

The Dart Flittermouse is a British single-seat ultralight designed by A R Weyl and built by Dart Aircraft Limited at Dunstable, England.

An older English name for bats is flittermouse, which matches their name in other Germanic languages (for example German Fledermaus and Swedish fladdermus), related to fluttering of wings, as for Latin bakke, a "moth, nocturnal insect".

I know not if it is owl or flittermouse; I could fancy it was a black cherub, an infernal cherub of darkness, not with the wings of a bird and the head of a baby, but with the head of a goblin and the wings of a bat.