plastidule

English

Etymology

From plastid +‎ -ule.

Noun

plastidule (plural plastidules)

1. (biology) One of the small particles or organic molecules of protoplasm.
   • 1874, Ernst Haeckel, The Evolution of Man:

     The plastidule movements of the cytula are therefore the resultant of the united plastidule movements of the female egg-cell and of the male sperm-cell

References

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