תַּנְשֶׁמֶת tanshemeth (H8580)

properly, a hard breather, i.e. the name of two unclean creatures, a lizard and abird (both perhaps from changing color through their irascibility), probably the tree-toad and the water-hen

1) an unclean animal of some kind 1a) an unclean bird 1a1) perhaps the ibis, water-hen, species of owl, barn owl 1b) an unclean lizard 1b1) perhaps the chameleon 1c) perhaps an extinct lizard or bird, exact meaning unknown

from נָשַׁם (H5395);