protectivewindow
nounUK /prəˈtɛktɪv ˈwɪndəʊ/
US /prəˈtɛktɪv ˈwɪndoʊ/
A protective window is a special window that keeps things safe from harm.
The scientist looked through the protective window while the robot worked inside the box.
OTHER MEANINGS
2. A window made of strong glass that protects people from heat, light, or danger.
The workers wore goggles and stood behind a protective window during the test.
3. A clear cover that keeps dirt and damage away from a screen or lens.
He put a protective window over his phone screen so it would not crack.
4. A window in a machine or helmet that guards the person using it.
The astronaut's helmet has a protective window that blocks bright sunlight.