Something added to fill a gap.
A substitution.
An intermediate result that must be stored temporarily during the course of a sparse matrix computation.
A temporary replacement for another, especially at a job.
A musical embellishment (usually percussion) that is added to connect musical phrases.
A product category that is used to complete a range or variety of a product line.
Something added to increase the size of something; padding or filler.
A question or puzzle in which one is expected to fill in a missing part of something.
A model or type of machinery or device which precedes the current (or later) one. Usually used to describe an earlier, outdated model.
One who precedes; one who has preceded another in any state, position, office, etc.; one whom another follows or comes after, in any office or position.
A vertex having a directed path to another vertex