The Collaborative International Dictionary
Diabetical
Diabetic \Di`a*bet"ic\, Diabetical \Di`a*bet"ic*al\, a.
Pertaining to diabetes; as, diabetic or diabetical treatment.
--Quian.
Diabetic sugar. (Chem.) Same as Dextrose. ||
Wiktionary
diabetical
a. (archaic form of diabetic English)