mucus
nounUK /ˈmjuː.kəs/
US /ˈmjuː.kəs/
Mucus is the slippery stuff in your nose and throat that helps keep you healthy.
When you have a cold, your body makes extra mucus to trap germs.
OTHER MEANINGS
2. A protective slimy coating made by animals like snails and fish.
The snail left a trail of mucus on the leaf.
3. A thick fluid made by plants or animals to keep surfaces wet.
The fish's skin is covered in mucus that helps it swim smoothly.
4. In biology, any slimy substance secreted by cells or glands.
The doctor explained that mucus lines the inside of your lungs.