noun
- A fertilized egg cell; a zygote formed by the union of an egg and sperm.
Usage: biology; technical
Examples
- The oosperm divides repeatedly to form the embryo.
- In marine biology, researchers track the development of the oosperm from fertilization onward.
- The oosperm contains genetic material from both parents.
- After fertilization, the oosperm begins its journey through the fallopian tube.