"aperture" - key terms from Wikipedia

aperture
aperture	area
aperture	card
aperture	diameter
aperture	grille
aperture	lamps
aperture	plate
aperture	ring
aperture	scale
aperture	science
aperture	science handheld portal device
aperture	sight
aperture	sights
aperture	stop
aperture	synthesis
aperture	when
automatic aperture	control
camera aperture
circular aperture
diaphragm aperture
effective aperture
full aperture
inverse synthetic aperture	radar
laser aperture
maximum aperture
numerical aperture
preset aperture
projector aperture
rear aperture
relative aperture
sampling aperture
synthetic aperture
synthetic aperture	radar
synthetic aperture	sonar
target aperture	sights
through the aperture
type aperture	indexing
variable aperture
very small aperture	terminal
wide aperture
working aperture