Dictionary

pennate

adjective pen·nate \ˈpe-ˌnāt\

Definition of PENNATE

:  of, relating to, or being usually elongate bilaterally symmetrical diatoms of an order (Pennales) having a raphe or a similar structure
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Origin of PENNATE

irregular from New Latin Pennales
First Known Use: 1938
Medical Dictionary

pennate

adjective pen·nate \ˈpen-ˌāt\

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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