Rearmouse \Rear"mouse`\, Reremouse \Rere"mouse`\ (-mous`), n.
[AS. hr[=e]rem[=u]s; probably fr. hr[=e]ran to agitate, stir
(akin to G. r["u]hren, Icel. hr[ae]ra) + m[=u]s mouse.]
(Zool.)
The leather-winged bat ({Vespertilio murinus}). [Written also
{reermouse}.]
[1913 Webster] re-arrange