soleus

n., pl., -le·i (-lē-ī').
A broad, flat muscle of the calf of the leg, situated under the gastrocnemius.

[New Latin, from Latin solea, sandal. See sole¹.]

A flat muscle that extends along the back of the calf behind the gastrocnemius with which it forms the triceps surae. The soleus has extensive, cone-shaped origins on the superior tibia, fibula, and interosseus membrane. Its insertion is on the caleaneus via the Achilles tendon. It has a high proportion of slow-twitch fibres that make it relatively fatigue-resistant. Its primary action is plantar flexion. It is also an important postural muscle during locomotion.

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The noun has one meaning:

Meaning #1: a broad flat muscle in the calf of the leg under the gastrocnemius muscle
  Synonym: soleus muscle

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soleus	Soleus Dehumidifier
Soleus Mac-12k	Soleus 40