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A
deficiency
is a lack of something.
In mathematics, a
deficient number
is a number
n
for which
σ
(
n
) < 2
n
.
In medicine there are a variety of nutrient deficiencies:
Avitaminosis
is a deficiency of vitamins.
Boron deficiency (medicine)
Chromium deficiency
Iron deficiency (medicine)
Iodine deficiency
Magnesium deficiency (medicine)
Deficiency
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Scientus.org
Dictionary
(
Yet Another Wiki
) RC
: 1.39
MIT OpenCourseWare
This article is licensed under the GNU Free Documentation License
[copyleft]
. It uses material from the Wikipedia article "Deficiency".
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