A condition leading to the deficiency in the production of thyroid hormone.

Symptoms include fatigue, paleness, poor muscle tone, decreased sweating, possible weight gain, etc.

About three percent of the general population has hypothyroidism.
Hypothyroidism can limit peoples' lives drastically as it causes excessive tiredness.
by Anonymous66746754 May 16, 2011

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Top Definition
the not your fault disease that causes you to gain weight, but to people who don't know, your just fat.

fat ass fatty fat
Anne had hypothyroidism which made her gain weight.skanks at her school talked about her when she walked down the hall thinking she couldn't hear them, but she could. Anne killed herself at age 12 weighing 110 pounds. (btw the skanks weighed 90)
by TrueStoryDude July 19, 2009

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