opsiometer /op-si-omˈi-tər/

An optometer

• skyjack
• skyjacked
• skyjacker
• skyjackers
• skyjacking
• skyjackings
• skyjacks
• skyjumping
• skylab
• skylabs
• skylark
• skylarked
• skylarker
• skylarkers
• skylarking
• skylarkings
• skylarks
• skyless
• skylight
• skylight filter
• skylight filters
• skylights
• skyline
• skylines
• skyman