The difference between the number of double points on a curve and the maximum possible for a curve of that degree

Alternative form of immunodeficiency

(pathology) A rare genetic metabolic disorder of the urea cycle. Abbreviated as OTC.

(number theory) A number that is greater than the sum of all of its divisors except itself.

plural of deficient number

plural of curve deficiency

plural of boron deficiency

deficient in itself; not whole or complete; lacking

plural of immune deficiency

(mathematics, linear algebra, of a matrix) Not having full rank; having a rank (dimension) less than the number of columns and the number of rows.