ovum defined in 1951 yearovum - ovum;
ovum - Unfertilized egg-cell. A single large immobile cell, containing a haploid nucleus. In many animals, it is the oocyte which is fertilized by the sperm and in these animals, strictly speaking, an unfertilized ovum does not therefore exist.
near ovum in Knolik
definition of word "ovum" was readed 993 times