protectivecap

noun
UK /prəˈtɛktɪv kæp/
US /prəˈtɛktɪv kæp/

A small cover that keeps something safe from harm.

He put a protective cap on the sharp end of the stick.


OTHER MEANINGS

2. A small lid that keeps dirt out of a tube or pen.

Put the protective cap back on the glue stick so it does not dry out.

3. A cover worn on the head to keep it safe.

The builder wore a protective cap on the building site.

4. A cover that stops damage to a machine part.

The protective cap on the camera lens keeps scratches away.

5. A small cover on a bottle that keeps germs out.

Twist the protective cap off the medicine bottle.