Oosperm
noun ·Rare ·Advanced level
Definitions
- 1 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."
Example
More examples"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."
Etymology
From oo- + sperm.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.