See Also: orthodiagraphy(dictionary)

orthodiagraphy (iou)



orthodiagraphy noun. Now rare. E20.
[from ORTHO- + DIA-1 + -GRAPHY.]
Medicine. A technique for determining the size of an organ etc. by measuring the area of its shadow projected on to a fluorescent screen using a beam of X-rays.
ortho'diagram noun a shadow projection used in orthodiagraphy E20.
orthodia'graphic adjective E20.