[1] : The Collaborative International Dictionary of English v.0.48

major \ma"jor\, l. major, compar. of magnus great: cf. f.
   majeur. cf. master, mayor, magnitude, more, a.
   1. greater in number, quantity, or extent; as, the major part
      of the assembly; the major part of the revenue; the major
      part of the territory.
      1913 webster

   2. of greater dignity; more important. --shak.
      1913 webster

   3. of full legal age; adult. obs.
      1913 webster

   4. mus. greater by a semitone, either in interval or in
      difference of pitch from another tone.
      1913 webster

   major key mus., a key in which one and two, two and
      three, four and five, five and six and seven, make major
      seconds, and three and four, and seven and eight, make
      minor seconds.

   major offense law, an offense of a greater degree which
      contains a lesser offense, as murder and robbery include
      assault.

   major scale mus., the natural diatonic scale, which has
      semitones between the third and fourth, and seventh and
      fourth, and seventh and eighth degrees; the scale of the
      major mode, of which the third is major. see scale, and
      diatonic.

   major second mus., a second between whose tones is a
      difference in pitch of a step.

   major sixth mus., a sixth of four steps and a half step.
      in major keys the third and sixth from the key tone are
      major. major keys and intervals, as distinguished from
      minors, are more cheerful.

   major third mus., a third of two steps.
      1913 webster
see also:
master mayor magnitude more major key major offense 
major scale scale diatonic major second major sixth 
major third 

[2] : The Collaborative International Dictionary of English v.0.48

major diatonic scale \major diatonic scale\ n. mus.,
   the natural diatonic scale, which has semitones between the
   third and fourth, and seventh and eighth notes, and whole
   tones between the other notes; the scale of the major mode,
   of which the third is major; also called major scale. see
   scale, and diatonic.
   1913 webster + wordnet 1.5
see also:
major scale scale diatonic 

[3] : WordNet (r) 2.0

major scale
     n : a diatonic scale with notes separated by whole tones except
         for the 3rd and 4th and 7th and 8th syn: major diatonic
         scale
see also:
major diatonic scale 

Major Scale >> M Words
Major Scale, definition of term: Major Scale
major+scale_pag1.html

Major >> M Words
Major, definition of term: Major
major_pag1.html

Major General >> M Words
Major General, definition of term: Major General
major+general_pag1.html

Major Premise >> M Words
Major Premise, definition of term: Major Premise
major+premise_pag1.html

Major Axis >> M Words
Major Axis, definition of term: Major Axis
major+axis_pag1.html

Major Affective >> M Words
Major Affective, definition of term: Major Affective
major+affective_pag1.html

Canis Major >> C Words
Canis Major, definition of term: Canis Major
canis+major_pag1.html

Fish Scale >> F Words
Fish Scale, definition of term: Fish Scale
fish+scale_pag1.html

Beaufort Scale >> B Words
Beaufort Scale, definition of term: Beaufort Scale
beaufort+scale_pag1.html

Diatonic Scale >> D Words
Diatonic Scale, definition of term: Diatonic Scale
diatonic+scale_pag1.html