defender cells
nounUK /dɪˈfendə selz/
US /dɪˈfendər selz/
Tiny cells in your body that fight germs to keep you healthy.
When you get a cold, your defender cells rush to fight the germs.
OTHER MEANINGS
2. Cells that guard a plant from disease.
The plant's defender cells stopped the fungus from spreading.
3. Cells in a computer game that protect a base.
I placed my defender cells around the castle to block the enemy.
4. Cells that protect a hive in nature.
The bee defender cells attacked the intruder near the hive.