transitive verb

1. to change the form or outward appearance of
2. to change the condition, nature, or function of; convert
3. to change the personality or character of
4. Elec. to change (a voltage or current value) by use of a transformer
5. Linguis. to change by means of a syntactic transformational rule
6. Math. to change (an algebraic expression or equation) to a different form having the same value
7. Physics to change (one form of energy) into another

Etymology: ME transformen < L transformare < trans-, trans- + formare, to form < forma, form

intransitive verb

noun