To turn about or back; reverse the position or direction of.To alter to the contrary; reverse.To cast back; turn to the past.To turn back; face or look backward.To come back to a former place or position; return.To return, as to a former habit, custom, or mode of thought or conduct.In biology, to go back to an earlier, former, or primitive type; reproduce the characteristics of antecedent stages of development; undergo reversion; exhibit atavism.To go back in thought or discourse, as to a former subject of consideration; recur.In law, to return to the donor, or to the former proprietor or his heirs.In chem., to return from a soluble to an insoluble condition: applied to a change which takes place in certain superphosphates. See reversion, 8.n. One who or that which reverts; colloquially, one who is reconverted.n. In music, return; recurrence; antistrophe.n. That which is reverted. Compare introvert, n.