Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for deficience
In mathematics, which I place as a part of metaphysic, I can report no deficience.
In poetry I can report no deficience; it has sprung up and spread abroad more than any other kind of learning.
Whoever has the care of instructing others, may be charged with deficience in his duty if this book is not recommended.The Works of Samuel Johnson, LL.D. in Nine Volumes
But this misplacing hath caused a deficience, or at least a great improficience in the sciences themselves.The Advancement of Learning