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Definition of Unipennate
1. Adjective. (medicine anatomy zoology) Of, pertaining to, or having the nature of a muscle, the parallel fibres of which attach to a tendon at an acute angle (as a feather that is barbed on one side). ¹
¹ Source: wiktionary.com
Medical Definition of Unipennate
1. 1. Having a feather arrangement on one side; resembling one-half of a feather. 2. Denoting certain muscles with fibres running at an acute angle from one side of a tendon. Synonym: demipenniform. Origin: uni-+ L. Penna, feather (05 Mar 2000)