Myotube

Part of speech: noun

Definitions

1. A syncytial cell with multiple nuclei that forms as muscle precursor cells fuse together during the early stages of skeletal muscle development
2. A multinucleated structure created when myoblasts merge and align, representing an intermediate stage in the formation of mature muscle fibers
3. A cell containing numerous nuclei that arises from the fusion of myogenic progenitor cells and gives rise to functional muscle tissue

Etymology: A myotube is a compound built from two Greek and Latin pieces that came into English by different routes. The first part, "myo-", descends from the ancient Greek "mûs", meaning mouse, and the same word gave English the prefix used in names for muscles, since early anatomists likened a flexing muscle to a mouse moving under the skin. The second part, "tube", traces back to the Latin "tubus", a pipe or hollow cylinder, which passed through Middle French "tube" before reaching English. Put together, the term is a plain technical coinage: a tube-like structure within muscle tissue, named by combining the anatomical prefix with the familiar word for a hollow cylinder. Its parts were assembled in modern scientific English rather than handed down from classical authors, so the ancient Greeks and Romans would not have recognised the whole word, only its components.