from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A sequence of six tones with a semitone in the middle, the others being whole tones, that was used in medieval music.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A series of six tones denoted with the syllables ut-re-mi-fa-sol-la separated by seconds, the only of which that is a minor second being mi-fa.
from the GNU version of the Collaborative International Dictionary of English
- n. A series of six notes, with a semitone between the third and fourth, the other intervals being whole tones.
from The Century Dictionary and Cyclopedia
- n. In Greek music: A diatonic series of six tones.
- n. The interval of a major sixth.
- n. An instrument with six strings.
- n. In medieval music, a diatonic series of six tones, containing four whole steps and one half-step (between the third and fourth tones).
Medieval Latin hexachordum, from Latin hexachordos, having six strings or stops : Greek hexa-, hexa- + Greek -khordos, string, note (from khordē; see cord).(American Heritage® Dictionary of the English Language, Fourth Edition)