opsiometer /op-si-omˈi-tər/

An optometer

• undissolved
• undissolving
• undistempered
• undistilled
• undistinctive
• undistinguishable
• undistinguishableness
• undistinguishably
• undistinguished
• undistinguishing
• undistorted
• undistracted
• undistractedly
• undistractedness
• undistracting
• undistributed
• undistributed middle
• undisturbed
• undisturbedly
• undisturbing
• undiversified
• undiverted
• undiverting
• undivested
• undivestedly