stem
Definitions
The main body or stalk of a plant that supports leaves, flowers, or fruit.
To originate from or be caused by a particular source or event.
To stop or restrict the flow of a fluid, such as blood from a wound.
Examples
The flower has a long, green stem.
We need to stem the flow of misinformation before it causes further damage.
The scientist examined the stem cells under a high-powered microscope.