To change markedly the appearance or form of: "A thick, fibrous fog had transformed the trees into ghosts and the streetlights into soft, haloed moons” ( David Michael Kaplan).
To change the nature, function, or condition of; convert. See Synonyms at convert.
Mathematics To subject to a transformation.
Electricity To subject to the action of a transformer.
Genetics To subject (a cell) to transformation.
To undergo a transformation.
The result, especially a mathematical quantity or linguistic construction, of a transformation.