from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A full, rich outpouring of harmonious sound.
- n. The entire range of an instrument or voice.
- n. Either of the two principal stops on a pipe organ that form the tonal basis for the entire scale of the instrument.
- n. The interval and the consonance of an octave.
- n. A standard indication of pitch.
- n. A tuning fork.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the range or scope of something, especially of notes in a scale, or of a particular musical instrument
from the GNU version of the Collaborative International Dictionary of English
- n. The octave, or interval which includes all the tones of the diatonic scale. Compare disdiapason.
- n. Concord, as of notes an octave apart; harmony.
- n. The entire compass of tones; the entire compass of tones of a voice or an instrument.
- n. A standard of pitch; a tuning fork.
- n. One of certain stops in the organ, so called because they extend through the scale of the instrument. They are of several kinds, as open diapason, stopped diapason, double diapason, and the like.
from The Century Dictionary and Cyclopedia
- n. In music: In the ancient Greek system, the octave.
- n. The entire compass of a voice or an instrument.
- n. Correct tune or pitch.
- n. A rule by which organ-pipes, flutes, etc., are constructed, so as to produce sounds of the proper pitch.
- n. A fixed standard of pitch, as the French diapason normal, according to which the A next above middle C has 435 vibrations per second. See pitch.
- n. A tuning-fork.
- n. In organ-building, the two principal foundation-stops, called respectively the open diapason and the stopped diapason. The open diapason has metal pipes of large scale, open at the top, giving that full, sonorous, majestic tone which is the typical organ-tone. The stopped diapason has wooden pipes of large scale, stopped at the top by wooden plugs, giving that powerful, flute-like tone which is the typical flute-tone of the organ. The most important mutation-stops of the open-diapason species are the double open diapason, sounding the octave below the key struck; the principal or octave, sounding the octave above; and the fifteenth, sounding the second octave above. Those of the stopped-diapason species are the bourdon, sounding the octave below; the flute, sounding the octave above; and the piccolo, sounding the second octave above. Many varieties of each of these occur. See stop.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. either of the two main stops on a pipe organ
Middle English diapasoun, from Latin diapāsōn, the whole octave, from Greek dia pāsōn (khordōn), through all (the notes) : dia, through; see dia- + pāsōn, feminine genitive pl. of pās, every; see pant- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin diapason, from Ancient Greek διαπασων, that is διά + πασων (χορδων) ‘through all (notes)’. (Wiktionary)