myoblast

myo- +‎ -blast

myoblast (plural myoblasts)

1. An undifferentiated stem cell that develops into muscle tissue.
   • 1892, Carl Friedrich Wilhelm Claus, F. G. Heathcote, editor, Elementary Text-book of Zoology:

     It is the deeper parts of such cells which give rise to delicate muscular fibres or networks of fibres, while the superficially placed body of the cell (myoblast), the part which produces the above, performs other functions, and usually bears a cilium.

• at symbol