What is "catamarans"

Usage examples of "catamarans".

Its capital, Tallinn, seemed to be the destination for an array of roll-on, roll-off ferries, high-speed catamarans, and hydrofoils.

Serian ships with square bows and slatted sails were berthed end to end with catamarans from Dalopo, bulbous grain haulers from Ornifal, and small craft carrying wine or citrus fruit or metalwork from a dozen islands, some too small to have names to any but their own citizens.