Definition of pennate
: of, relating to, or being usually elongate bilaterally symmetrical diatoms of an order (Pennales) having a raphe or a similar structure
Origin of pennate
irregular from New Latin Pennales
First Known Use: 1938
Medical Definition of pennate
: having a structure like that of a feather; especially : being a muscle in which fibers extend obliquely from either side of a central tendon
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Medical Dictionary: Definition of "pennate"
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