from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The state of having three (legal or illegal) spouses simultaneously.
- n. A third marriage.
from the GNU version of the Collaborative International Dictionary of English
- n. The act of marrying, or the state of being married, three times; also, the offense of having three husbands or three wives at the same time.
from The Century Dictionary and Cyclopedia
- n. Triple marriage; the state of one who has been thrice married; especially, the state or offense of having three wives or husbands at the same time.
From Greek τρίγαμος (trigamos), from τρία (tria, "three") + γάμος (gamos, "marriage"). Or tri- + -gamy in modern terms. (Wiktionary)