from The Century Dictionary.
- In entomology, nearly perfect; deficient in some parts: as, semiperfect limbs; a semiperfect neuration.
Sorry, no etymologies found.
Best of all, by virtue of its being ten times a perfect number, 60 is a semiperfect number, which to us mortals is as good as it gets.
A semiperfect number in mathematics is where all or some of the factors of the number sum up to the number itself.
The last chapters of this volume provide the theory of semiprime Noetherian semiperfect and semidistributive rings.
a weird number is a number that is natural but not semiperfect. en Español