Definitions

1. adjective

relating to or forming a pair of organs, cells, or structures that are derived from the same fertilized egg cell, especially in humans or other animals.

“The zygous twins were identical and shared the same blood type.”

2. noun

a pair of organs, cells, or structures that are derived from the same fertilized egg cell, especially in humans or other animals.

“The zygous organs in the embryo begin to develop at the same time.”

3. noun

the fertilized egg cell from which an individual develops.

“The zygous cell is the first cell of the developing embryo.”