is excessive leanness caused by disease or lack of nutrition.
[imÄâ²shiÂ·Äâ²shÉn] Etymology: L, emaciare, to make lean. 1 excessive leanness caused by disease or lack of nutrition. emaciated, [imÄâ²shÄÂ·Äâ²tid] adj. 2 characterized by an extreme loss of subcutaneous fat that results in an abnormally lean body, such as with starvation.