Macnayaasha ugu caansan "D.C." waa: La soo gaabiyey "Degmada Columbia," degmada federaalka ee Maraykanka oo u adeegta sidii caasimadda qaranka, kuna taal xeebta bari ee dalka. Soo gaabinta "direct current," oo ah nooca korantada ee u qulqulaya hal jiho oo keliya. " shahaado xirfadeed oo ku saabsan dawooyinka xanuunka loo yaqaan 'chiropractic medicine'. li >
