What is "tomb bat"

Tomb \Tomb\, n. [OE. tombe, toumbe, F. tombe, LL. tumba, fr. Gr. ? a tomb, grave; perhaps akin to L. tumulus a mound. Cf. Tumulus.]

1. A pit in which the dead body of a human being is deposited; a grave; a sepulcher.

   As one dead in the bottom of a tomb.
   --Shak.

2. A house or vault, formed wholly or partly in the earth, with walls and a roof, for the reception of the dead. ``In tomb of marble stones.''
   --Chaucer.

3. A monument erected to inclose the body and preserve the name and memory of the dead.

   Hang her an epitaph upon her tomb.
   --Shak.

   Tomb bat (Zo["o]l.), any one of species of Old World bats of the genus Taphozous which inhabit tombs, especially the Egyptian species ( Taphozous perforatus).

n. Any of various species of Old World bats of the genus ''Taphozous'' which inhabit tombs, especially the Egyptian species ''Taphozous perforatus''.