01 n. The state of being deficient; inadequacy; want; failure; imperfection; shortcoming; defect.
pl.
Deficiencies ((#))
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1.
The state of being deficient; inadequacy; want; failure; imperfection; shortcoming; defect.“[Marlborough] was so miserably ignorant, that his deficiencies made him the ridicule of his contemporaries.” — Buckle.
Phrases & compounds
Deficiency of a curve —
the amount by which the number of double points on a curve is short of the maximum for curves of the same degree.