TRANSFORMA'TION, noun The act or operation of changing the form or external appearance. 1. Metamorphosis; change of form in insects; as from a caterpillar to a butterfly. 2. Transmutation; the change of one metal into another, as of copper or tin into gold. 3. The change of the soul into a divine substance, as among the mystics. 4. Transubstantiation. 5. In theology, a change of heart in man, by which his disposition and temper are conformed to the divine image; a change from enmity to holiness and love. 6. In algebra, the change of an equation into one of a different form, but of equal value.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI