Definitions
1.nounA continuous series or whole, no part of which is noticeably different from its adjacent parts, although the ends or extremes of it are very different from each other.
2.nounA continuous extent.
3.nounThe set of real numbers; more generally, any compact connected metric space.
4.nounA touch-sensitive strip, similar to an electronic standard musical keyboard, except that the note steps are 1/100 of a semitone, and so are not separately marked.