semiperfect

/S EH1 M AH0 P ER0 F EH1 K T/
adjective
  1. 1

    (mathematics) Of an integer equal to the sum of all or some of its proper divisors.

  2. 2

    Approaching perfection; not entirely perfect.

  3. 3

    (mathematics) Of a ring over which every finitely generated left module has a projective cover.