ind, _Raia clavata_.

THOROUGH-PUTS, OR THOROUGH-FOOTS, are kinks or tangles in a rope; or
parts of a tackle not leading fair by reason of one of the blocks having
been passed round part of the fall, and so _getting a turn_.

THOUGHT. An old spelling of _thwart_.

THRASHER, OR THRESHER. A species of shark with a long tail, _Carcharias
vulpes_. Also applied to a kind of grampus, which was supposed to attack
the whale by leaping out of the water and inflicting blows with its
powerful tail.

THREAD [Ang.-Sax. _thred_]. The middle of a river or stream.--_To
thread._ To run a ship through narrow and intricate channels among
islands.

THREE-COCKED HAT. A silly article of sea-wear now happily passing away,
retained only by coachmen, lord-mayor's men, and parish beadles.

THREE-DECKERS. Ships with three full batteries.

THREE HALF-HITCHES ARE MORE THAN A KING'S YACHT WANTS. An exclamatory
remark to a green hand, meaning that two are enough.

THREE SHEETS IN THE WIND. Unsteady from drink.

THREE SISTERS. Formerly the badge of office of boatswains' mates and
masters-at-arms, made of three rattans bound together with waxed twine.

THREE-SQUARE. An odd word applied to staysails, or anything triangular,
as was the oblong square to a parallelogram.

THRIFT. _Armeria_, a genus of handsome plants growing on the sea-coast.

THROAT. The widened and hollowed end of a gaff next the mast; opposed to
_peak_, the outer end. Also, the midship portion of the floor-timbers
and transoms. The contrary of _breech_.

THROAT-BOLTS. Eye-bolts fixed in the lower part of tops, and the
jaw-ends of gaffs, for hooking the throat-halliards to.

THROAT-BRAILS. Those which are attached to the gaff for trussing up the
sail close to the gaff as well as the mast. (_See_ BRAILS, and
TOPMAST-STAYSAILS.) Falconer says:--

"For he who strives the tempest to disarm,
Will never first embrail the lee yard-arm."

Brail thus applies to leech-lines, clue-lines, &c.

THROAT-HALLIARDS. Ropes or tackles applied to hoist the inner part of
the gaff, and its portion of the sail, and hook on to the throat-bolts,
as above.

THROAT-SEIZING. In blocks, confines the hook and thimble in the strop
home to the scores. Also, in turning in rigging, the throat-seizing is
passed with riding turns, through which the end is hove taut, and being
turned up sharply, is well seized to the standing part of the rigging,
making it a severe cross nip, which cannot rende