Has anyone addressed the actual question here? I may be wrong (my ex-wife thought I was...frequently), but I think this is a question of definition, too.
A chord is any combination of two or more tones, usually in thirds, e.g. C E G making a nice C chord.
How you arrange those pitches consititutes the 'voicing'. The simplist C chord voicing on guitar is your standard C formation, in which the tones (in ascending order) are C, E, G, C and E (without playing the low E string). Play an E chord formation under the barre on the 8th fret, and you still have a C chord, but in a different voicing - C, G, C, E, G, C. Same chord, different sound.