mesoplast

From meso- +‎ -plast.

mesoplast (plural mesoplasts)

1. (biology) The nucleus of a cell; mesoblast.
   • 1857-1862, Louis Agassiz, Contributions to the Natural History of the United States of America

     We have already mentioned , that there is no constant size at which the ectoblast develops its mesoblast . A minute ectoblast may be seen with a well defined mesoblast

• “mesoplast”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

• plastomes, slam poets, Epsom salt