sextuple
sextuple
A sextuple.
In order: single, double, triple, quadruple, quintuple, sextuple, septuple, octuple, nonuple... etc. The prefixes are derived from latin number names.
HEXAD or sextuple or a sextet
The progression is: single, double, triple, quadruple, quintuple, sextuple, septuple, octuple.
A 6-vessel CABG is called a sextuple bypass. I only know because a friend just had one.
A few are: sextant (since it's a sixth of a circle), sextuple (a group of six), and sexagenarian (in one's sixties).
Quadruple, four times. Quintuple, five times. From 1 on up the words are single double triple quadruple quintuple sextuple septuple octuple ... and so on
http://en.wikipedia.org/wiki/Tuple Wikipedia lists 1-12 and then 100.
That is C-sharp Major, but since the circle of 5ths is a circle, it could go on for infinite, you COULD have C sextuple-sharp major with 42 sharps but it is never necessary to go this far!
The following are the only ones I know of. Single (1) (also: singleton, sole, only, etc.) Double (2) (also: pair, twice) Triple (3) (also: triplet, treble, thrice, threesome, troika, trio) Quadruple (4) Quintuple or Pentuple (5) Sextuple or Hextuple (6) Septuple (7) Octuple (8) Nonuple (9) Decuple (10) Hendecuple or Undecuple (11) Duodecuple (12) Centuple (100)