Prothyalosomata

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Pro thyalosoma \Pro* thy`a*lo*so"ma\, n.; pl. {Prothyalosomata}.
     [NL., fr. Gr. prw^tos first + "y`alos glass + ?, ?, body.]
     (Biol.)
     The investing portion, or spherical envelope, surrounding the
     eccentric germinal spot of the germinal vesicle.
     [1913 Webster]