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Octane vs Octave - What's the difference?

octane | octave |

As nouns the difference between octane and octave

is that octane is while octave is (music) an interval of twelve semitones spanning eight degrees of the diatonic scale, representing a doubling or halving in pitch.

As an adjective octave is

(obsolete) consisting of eight; eight in number.

octane

English

Noun

(en noun)
  • (chemistry) Any of the eighteen isomeric aliphatic hydrocarbons (C8H18) found in petroleum, especially an iso-octane 2,2,4 trimethyl-pentane; they are used as fuels and solvents.

    • Derived terms

    * octane number

    Anagrams

    * *

    octave

    English

    Noun

    (en noun)
  • (music) An interval of twelve semitones spanning eight degrees of the diatonic scale, representing a doubling or halving in pitch.
    • The melody jumps up an octave''' at the beginning, then later drops back down an '''octave .
    The singer was known for astounding clarity over her entire five-octave range.
    The octave has a pitch ratio of 2:1.
  • (music) The pitch an octave higher than a given pitch.
    • The bass starts on a low E, and the tenor comes in on the octave .
  • (poetry) A poetic stanza consisting of eight lines; usually used as one part of a sonnet.
  • * Sir Philip Sidney
    • With mournful melody it continued this octave .
  • (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.
  • A small cask of wine, one eighth of a pipe.

    • Abbreviations

    * (interval)

    Derived terms

    * perfect octave * diminished octave * augmented octave * octaval

    Related terms

    * octavo * oct-

    See also

    * interval * unison * second * third * fourth * fifth * sixth * seventh * *

    Adjective

    (-)
  • (obsolete) Consisting of eight; eight in number.
    • (Dryden)

    Anagrams

    * ----