Circuit board and Printed circuit

Circuit board noun - A printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities.

Printed circuit and circuit board are semantically related. In some cases you can use "Printed circuit" instead a noun phrase "Circuit board".

Printed circuit noun - Computer circuit consisting of an electronic sub-assembly; copper conductors are laminated on an insulating board or card and circuit components are inserted into holes and dip soldered.

Circuit board and printed circuit are semantically related. You can use "Circuit board" instead a noun phrase "Printed circuit".