This is the name of the southernmost neighbourhood on the Lido, ruled in the Renaissance by the Pisani family. Its parish church is Santa Maria Assunta and is currently the site of Dingo, Venice's stray cat sanctuary.
Confusingly it's also the name of a now submerged island east of the Lido that served as the first capitals of Venice, under the reign of second doge, Theodatus (742-755), an important that lasted until everyone up sticks to the greater safety of the Rialto in 811.
It's also the name of one of the three deep shipping channels into the lagoon (mostly used for cargo ships en route to Marghera) and once become something of a household word again with the construction of MOSE.
vaporetto: Lido Casino
Image by Yesuitus2001, Creative Commons License