An alternative adjective form relating to or involving the gastrocnemius muscle of the calf.
From the same Greek roots as 'gastrocnemial' ('gastro-' and 'kneme'), with an alternative adjectival suffix '-an' instead of '-ial'. Both forms are used in anatomical literature.
Medical and anatomical terminology often has multiple correct forms for the same structure—it's not a mistake, but rather how language naturally develops multiple ways to express the same idea.
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