Also found in: Wikipedia.


1.A boat or vessel adapted to the open sea; hence, a vessel considered with reference to her power of resisting a storm, or maintaining herself in a heavy sea; as, a good sea boat.
2.(Zool.) A chiton.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
The Houstons cited a 13-year study done by the state's safety board showing only three accidents with a seaboat during those years as compared to 40,000 boat accidents.
The pair were in the water for 15 minutes before the ship's seaboat arrived on the scene.
The model accompanied the case as it was brought down the Thames by a Royal Navy Pacific 24 seaboat under the watchful eye of the Royal Navy Black Cat Lynx helicopters.
In the seaboat Saw the sailors One-man waving (Seashore waving).
"One of HMS Endurance's Lynx helicopters was sent ahead to establish the level of assistance required, and once the British ship arrived her seaboat was sent to rendezvous with the cruise ship.
There will be rehearsals from 10.15am using a new jet-driven seaboat and Royal Marines fast attack boats.
Redesigned for cruising with a new aft lido deck as shown, her purser, John Shepherd, from Wallasey, says: 'This was considered very stylish in 1964, but because she was a "lively" seaboat, it didn't take much for water to slop out of the swimming pool' Picture: ARTHUR LLOYD, of Ainsdale
The collision caused damaged to several above deck sections on the port side including the superstructure, the 30mm gun deck, the seaboat supports and the bridge wing.
RSPCA seaboats travelled along the seaside town's North Bay as part of a clean-up initiative.