The phrase "arm shrunken" is not standard in written English, but it can be understood in context.
It can be used to describe an arm that has decreased in size, possibly due to atrophy or injury.
Example: "After months of immobilization, his arm shrunken and weak, he struggled to regain strength."
Alternatives: "reduced arm" or "atrophied arm".
Due to her rare form of leukemia, one of her arms was shrunken, as fragile as a bird's.
He gestured with a shrunken arm to show Robert where his line was.
Several were friends from the sideshow: the ventriloquist with his dummy; the hangman; the man with shrunken flipper-like arms with his wife, a burlesque showgirl, both naked.
With both arms, she safeguards her world, which is shrunken to keep her away from crowded public spaces that might be choice sites for a bomber or disputed territory that the American government warns Americans away from.
A ward nurse examines the shrunken circumference of her upper arms, and marks her down in her records as a case of grade four malnutrition (the most acute), with signs of severe wasting.
Mind you, the fleshy parts are pretty mummified, but the skeleton is familiar, with a skull on top, an extensive rib cage comprising the upper body, four articulated appendages that look like arms and legs, and... Well, it could be a shrunken and shriveled version of your cousin Vinny.
Ma impersonated an ancient, shrunken man coming to life, growing in stature, raising his arms high in the air and roaring vague commands: "Nooooo!... Beethoven!... M-u-u-usic!... Crescendo!
Three Shrunken Skulls, 2008, digital c-print, 40 x 30 inches, courtesy of the artist and Rivington Arms.
On top of that, everything about the aesthetic is geared to emphasising skinniness: extra-large bags make the arms look frail, oversized men's watches make the wrists look twig-like, oversized sunglasses render the face almost shrunken.
Trousers were shrunken, too.
