bird leg

A popular term for a leg greatly decreased in diameter due to muscle atrophy
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

bird leg

A popular term for a leg greatly ↓ in diameter due to muscular atrophy. See Champagne bottle leg.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
By comparing measurements of the main parts of the legs of early birds-upper leg, shin, and foot - to those of their dinosaur relatives Dr Benson and co-author Dr Jonah Choiniere of the University of the Witwatersrand, South Africa, were able to determine whether bird leg evolution was exceptional compared to leg evolution in dinosaurs.
The half-ton craft, which resembled a gold-foil-wrapped, monster-truck tire 2 meters in diameter perched atop four slender metal bird legs, is believed to have crashed into the moon's surface at a vertical velocity of 140 meters per second (313 miles per hour), and a horizontal velocity of 950 meters per second (over 2,125 miles per hour, well above Mach 2).
Never mind youngsters, this scary figure - with its scraggy long black hair, bulging eyes, demonic smile and freaky bird legs - would send a shiver down the spine of most adults.
Momo is the nickname given to a scary sculpture of a weird woman with long black hair, large bulging eyes, a wide smile and bird legs - created in 2016 by Japanese doll artist from a special effects company.
Using black embroidery floss and stem stitch (Diagram Ill), add bird legs. (See quilt photo and Pattern Section for placement.)
I too was in danger of reaching the Tuscan stratosphere as a flag-draped local cradled me in his arms like a giant baby and repeatedly launched me into the air (Thankfully, he was a big strong boy - I may have bird legs but I'm no Keira Knightley).
They call those kids 'bird legs' or 'bird calves.' They'll have a tremendous upper body and nothing down below.
An unusual stone-top round table by Emerson et Cie features carved bird legs and beautiful inlay and the Swaim side table is topped with smooth travertine.