Google definition: a statement of the exact meaning of a word, especially in a dictionary.
the degree of distinctness in outline of an object, image, or sound, especially of an image in a photograph or on a screen.
My definition: The meaning or deintion of any word.
Answer:
Step-up transformers are used at power stations to produce the very high voltages needed to transmit electricity through the National Grid power lines. These high voltages are too dangerous to use in the home, so step-down transformers are used locally to reduce the voltage to safe levels.
