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atrophy

A-truh-fee /ˈætrəfi/

verbnounC2GREMCATSAT

medicalacademicmetaphorical

To waste away, typically due to the degeneration of cells, or become vestigial during evolution.

While primarily medical (muscles atrophying), it is often used metaphorically for skills or mental faculties that fade from lack of use.

The story behind the word. From the Greek 'atrophia,' meaning 'a lack of food.' It originally described the literal wasting away of the body due to starvation before becoming a general term for any organ or skill shrinking from lack of 'nourishment' or use.

Word relationships

wither: 'Wither' is usually for plants or skin; 'atrophy' is more technical and internal.
waste away: A more common, less technical phrase.

hypertrophy: The enlargement of an organ or tissue from the increase in size of its cells.
flourish: To grow or develop in a healthy or vigorous way.

Commonly confused with

degenerate: Degenerate implies a loss of quality or morality; atrophy implies a loss of size or strength.

Word family

atrophied (adjective): Having wasted away.

Collocations

muscle atrophy
atrophy from disuse
mental atrophy

Idioms & expressions

use it or lose it

Example sentences

"Without regular exercise, the muscles in his leg began to atrophy during the months it was in a cast." Medical description of a casted limb.
"He feared his creative abilities would atrophy if he spent too many years in a repetitive corporate job." Metaphorical use regarding skills.

Memory hook

If you win 'A Trophy' and then just sit on the couch looking at it, your muscles will atrophy. Atrophy = A-Trophy (No nourishment).

When not to use

Don't use it for physical objects like buildings; use it for biological or skill-based wasting.

Fun facts

Astronauts in space face significant muscle atrophy because the lack of gravity means their muscles don't have to work as hard.