What is a ‘tenzon’?

Ten·zon (tɛnˈsoʊn ), -n
1. A Provençal poem taking the form of a dialogue or debate between two rival troubadours. Variant of tenson.
[Origin: 1830–40; < F; OF tençon < Pr tensoun, tenso contest, dispute < L ténsiōn- (s. of ténsiō); see tension]

2. A seven-letter root domain name that was still available for affordable purchase c. Sept. 2007, leaving the enterprising literary web-entrepreneur to deal with only minor problems re: spelling and ætiology.