Definitions

1. noun

The female reproductive organs of a plant, especially the pistil or the ovary.

“The gynaecium of the flower was protected by a delicate layer of petals.”

2. noun

In some plant taxonomy systems, the gynaecium is considered one of the four parts of a flower, along with the androecium, calyx, and thalamus.

“The botanist carefully examined the flower’s androecium and gynaecium to identify its species.”