ep·i·di·a·scope 
(ĕp′ĭ-dīə-skōp′)
(ĕp′ĭ-dīə-skōp′)n.
A machine for projecting the images of opaque objects or transparencies on a screen.
[EPI- + DIA- + -SCOPE.]
- countersignature
- countersink
- counterspy
- counterstain
- countersue
- countersuit
- countersunk
- countertenor
- countertop
- countertrade
- countertrader
- countertransference
- countervail
- counterweigh
- counterweight
- counterweighted
- counterwoman
- countess
- count heads
- count heads/noses
- countinghouse
- counting house
- counting number
- countless
- countlessly