[ccp4bb] Definition of diffractometer

[Edward A. Berry]

Somewhere I got the idea that a diffractometer is an instrument that measures one reflection at a time. Is that the 
case, and if so what is the term for instruments like rotation camera, weisenberg, area detector? (What is an area 
detector?).

Logically I guess a diffractometer could be anything that measures diffraction, and that seems to be view of the 
wikipedia article of that name.
eab