'Teeth' in the Bible

And, behold, another beast, a second, like to a bear; and it was raised up on one side, and three ribs were in its mouth between its teeth: and they said thus unto it, Arise, devour much flesh.

After this I saw in the night-visions, and, behold, a fourth beast, terrible and powerful, and strong exceedingly; and it had great iron teeth; it devoured and brake in pieces, and stamped the residue with its feet: and it was diverse from all the beasts that were before it; and it had ten horns.

Then I desired to know the truth concerning the fourth beast, which was diverse from all of them, exceeding terrible, whose teeth were of iron, and its nails of brass; which devoured, brake in pieces, and stamped the residue with its feet;