oosperm

From oo- +‎ sperm.

oosperm (plural oosperms)

1. (biology) The ovum, after fusion with the spermatozoon in impregnation.
   • 1880-1881, Francis Maitland Balfour, A Treatise on Comparative Embryology

     It is clear that the ovum after fertilization is an entirely different body to the ovum prior to that act , and unless the use of the same term for the two conditions of the ovum had become very familiar , a special term , such as oosperm , for the ovum after the fusion with the spermatozoom, would be very convenient.

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

• prosome