D defs.my
Entry 1 sense Webster, 1913

Mousehole

/mous'-hōlˌ/ · Mouse·hole · IPA /ˈmaʊzəl/
01 n. A hole made by a mouse, for passage or abode, as in a wall; hence, a very small hole like that gnawed by a mouse.
  1. 1.
    A hole made by a mouse, for passage or abode, as in a wall; hence, a very small hole like that gnawed by a mouse.