sub·junc·tion 
(səb-jŭngkshən)
(səb-jŭngkshən)n.
1. The act of subjoining or the condition of being subjoined.
2. Something subjoined.
[Late Latin subiūnctiō, subiūnctiōn-, from Latin subiūnctus, past participle of subiungere, to subjoin; see SUBJOIN.]