Толковый словарь английского языка - conversion

noun Etymology: Middle English, from Anglo-French, from Latin ~-, conversio, from convertere Date: 14th century the act of converting ; the process of being converted, an experience associated with the definite and decisive adoption of a religion, 3. the operation of finding a converse in logic or mathematics, reduction of a mathematical expression by clearing of fractions, a successful attempt for a point or points especially after a touchdown or for a first down , something converted from one use to another, gene ~, ~al adjective