from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Feather-shaped
from the GNU version of the Collaborative International Dictionary of English
- adj. Having the form of a feather or plume.
from The Century Dictionary and Cyclopedia
- Having the form of a quill or feather; resembling a feather in form.
The Extensor digitorum longus is a penniform muscle, situated at the lateral part of the front of the leg.
The latter mode of attachment occurs in all the penniform and bipenniform muscles, and in those muscles the tendons of which commence in a membranous form, as the Gastrocnemius and Soleus.
On examination the detached portion was found to include the terminal phalanx of the thumb, together with the tendon of the flexor longus pollicis measuring ten inches, about half of which length had a fringe of muscular tissue hanging from the free borders, indicating the extent and the penniform arrangement of the fibers attached to it.
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