so·​le·​us | \ ˈsō-lē-əs \
plural solei\ ˈsō-​lē-​ˌī \

Definition of soleus

: a broad flat muscle of the calf of the leg lying immediately beneath the gastrocnemius

First Known Use of soleus

1676, in the meaning defined above

History and Etymology for soleus

New Latin, from Latin solea sandal — more at sole

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Time Traveler for soleus

The first known use of soleus was in 1676

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so·​le·​us | \ ˈsō-lē-əs \
plural solei\ -​lē-​ˌī \ also soleuses

Medical Definition of soleus

: a broad flat muscle of the calf of the leg that lies deep to the gastrocnemius, arises from the back and upper part of the tibia and fibula and from a tendinous arch between them, inserts by a tendon that unites with that of the gastrocnemius to form the Achilles tendon, and acts to flex the foot

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irregularly rounded

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