OCTAVE
octave
(noun) a rhythmic group of eight lines of verse
octave, musical octave
(noun) a musical interval of eight tones
octave
(noun) a feast day and the seven days following it
Source: WordNet® 3.1
Etymology
Noun
octave (plural octaves)
(music) An interval of twelve semitones spanning eight degrees of the diatonic scale, representing a doubling or halving in pitch frequency.
(music) The pitch an octave higher than a given pitch.
(music) A coupler on an organ which allows the organist to sound the note an octave above the note of the key pressed (cf sub-octave)
(poetry) A poetic stanza consisting of eight lines; usually used as one part of a sonnet.
(fencing) The eighth defensive position, with the sword hand held at waist height, and the tip of the sword out straight at knee level.
(Christianity) The day that is one week after a feast day in the Latin rite of the Catholic Church.
(Christianity) An eight-day period beginning on a feast day in the Latin rite of the Catholic Church.
(math, obsolete) An octonion.
(signal processing) Any of a number of coherent-noise functions of differing frequency that are added together to form Perlin noise.
(astrology) The subjective vibration of a planet.
Abbreviations
• (interval): P8
Adjective
octave (not comparable)
(obsolete) Consisting of eight; eight in number.
Anagrams
• avocet, vocate
Source: Wiktionary
Oc"tave, n. Etym: [F., fr. L. octava an eighth, fr. octavus eighth,
fr. octo eight. See Eight, and cf. Octavo, Utas.]
1. The eighth day after a church festival, the festival day being
included; also, the week following a church festival. "The octaves of
Easter." Jer. Taylor.
2. (Mus.)
(a) The eighth tone in the scale; the interval between one and eight
of the scale, or any interval of equal length; an interval of five
tones and two semitones.
(b) The whole diatonic scale itself.
Note: The ratio of a musical tone to its octave above is 1:2 as
regards the number of vibrations producing the tones.
3. (Poet.)
Definition: The first two stanzas of a sonnet, consisting of four verses
each; a stanza of eight lines.
With mournful melody it continued this octave. Sir P. Sidney.
Double octave. (Mus.) See under Double.
– Octave flute (Mus.), a small flute, the tones of which range an
octave higher than those of the German or ordinary flute; -- called
also piccolo. See Piccolo.
4. A small cask of wine, the eighth part of a pipe.
Oc"tave, a.
Definition: Consisting of eight; eight. Dryden.
Source: Webster’s Unabridged Dictionary 1913 Edition