Sanakirja.org

Määritelmät

Adjektiivi

1. Lacking something essential; often construed with in.
2. Insufficient or inadequate in amount.
3. (mathematics) Of a number n, Having the sum of divisors σ(n)<2n, or, equivalently, the sum of proper divisors (or aliquot sum) s(n)

Substantiivi

1. A person who is deficient.