Webster's Revised Unabridged Dictionary · 1913

Deficiency

Deficiency , noun

[See Deficient.]

The state of being deficient; inadequacy; want; failure; imperfection; shortcoming; defect.
A deficiency of blood. — Arbuthnot
[Marlborough] was so miserably ignorant, that his deficiencies made him the ridicule of his contemporaries. — Buckle
Collocations (1)
Deficiency of a curve (Geometry) , the amount by which the number of double points on a curve is short of the maximum for curves of the same degree.