major scale

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A diatonic scale having half steps between the third and fourth and the seventh and eighth degrees and whole steps between the other adjacent degrees.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun One of the diatonic scales; a group of notes or musical pitches in a particular pattern, used to make melodies. The pattern for a major scale is:

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a diatonic scale with notes separated by whole tones except for the 3rd and 4th and 7th and 8th