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atrophy

atrophy Atrophy is a decrease in the size or working power of a bodily organ or mechanism caused by disuse, injury, or disease.

Atrophy is a decrease in the size or working power of a bodily organ or mechanism caused by disuse, injury, or disease. In historical evolutionary usage, it also referred to the shrinking of an organ or tissue because it had become useless or had been replaced in function by another organ.

Also see

Sources

Drafting source: Baldwin Dictionary of Philosophy and Psychology, 1901. 1901 New York Macmillan original; archive index checked 2026-10-18. “Atrophy” (Atrophy).
public-domain-US · Definition uses new wording; original source retains its stated licence. · Source snapshot SHA-256: 3080439997a24e7c6c40f6041855e46b506dddf3e7233aab182df3138865ab0e

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Cite this entry

PsychTerms (psychterms.org), CC BY 4.0, version 1. “atrophy.” Development preview.

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