10-Letter Words Ending: OPE

• a flexible medical instrument involving fiber optics that is used to examine internal organs

• A form of endoscope used to examine the ureter and the bladder.

• a measuring instrument that uses a grid for measuring the altitude, direction, and velocity of movement of clouds

• magnifier of the image of small objects

• A small opening in an interior wall of a church, enabling those in the transept to view the high altar.

• the first practical television-camera for picture pickup; invented in 1923 by Vladimir Kosma Zworykin

• green chalcedony with red spots that resemble blood

• An instrument that indicates small changes in an aircraft's altitude by recording small variations in atmospheric pressure.