transcription, транскрипция: [ ˈmə-səl ]
noun
Etymology: Middle English muscle, from Old English muscelle, from Vulgar Latin * muscula, from Latin musculus muscle, mussel
Date: before 12th century
1. : a marine bivalve mollusk (especially genus Mytilus ) usually having a dark elongated shell
2. : a freshwater bivalve mollusk (as of Unio, Anodonta, or related genera) that is especially abundant in rivers of the central United States and has a shell with a lustrous nacreous lining