TURRET-SHIP. A vessel, more or less armoured, fitted with one or more heavily plated revolving turrets, each carrying one or more guns of the heaviest class, which look out above the deck; the whole worked by steam-power. It represents the present improvement on the inventions of the cupola-ship, shield-ship, and monitor.

TURTLE. The well-known marine reptile described by early navigators as "reasonable toothsom meate." The horny covering of the shell of some species furnishes the substance commonly known as tortoise-shell.

TURTLE-CRAWL. A shallow lagoon, wherein turtles are kept.

TURTLE-PEG. A socketed pointed iron on a staff; it is slightly barbed, and is a special tool for sticking turtle.

TUSK. The Brosmius vulgaris, a savoury fish taken in the northern seas, about the size of the ling, but with a broader tail.

'TWEEN OR 'TWIXT DECKS. The one under the gun deck, where sailors usually mess.

TWICE-LAID. Rope made from a selection of the best yarns of old rope. Also, a sea-dish made of the salt-fish left from yesterday's dinner, and beaten up with potatoes or yams.

TWIDDLING-LINE. A piece of small rope ornamentally fitted and used for steadying the steering-wheel when required: no longer used.

TWIG, To. To pull upon a bowline. Also, in familiar phrase, to understand or observe.

TWIG-AIT. A river islet where osiers grow.