TRENCH THE BALLAST, To. To divide the ballast in a ship's hold to get at a leak, or to trim and stow it.
TREND, To. To bend or incline, speaking of a coast; as, "The land trends to the south-west." Also, the course of a current or stream.
TREND of an Anchor. The lower end of the shank, where it thickens towards the arms, usually at one-third from the crown. In round terms, it is the same distance on the shank from the throat that the arm measures from the throat to the bill.
TRENNEL. See [Tree-nails].
TREPANG. An eastern name for the Holothuria, or bêche-de-mer, frequently called the sea-slug; used as an article of food by the Chinese.
TRESTLE-TREES. Two strong bars of timber fixed horizontally fore-and-aft on each side of the lower mast-head, to support the top-mast, the lower cross-trees, and top; smaller trestle-trees are fitted on a topmast-head to support the topgallant-mast and top-mast cross-trees.
TRIANGLE, or Trigon. A geometrical figure consisting of three sides and as many angles. Also, a machine formed by spars for lifting weights, water-casks, &c. Also, a stage hung round a mast, to scrape, paint, or grease it.
TRIANGULUM. One of the ancient northern constellations.
TRIATIC STAY. A rope secured at each end of the heads of the fore and main masts, with thimbles spliced in its bight to hook the stay-tackles to. This term applies also to the jumper-stay, extending in schooners from the mainmast-head to the foremast-head, clearing the end of the fore gaff.
TRIBUTARY. Any stream, large or small, which directly or indirectly joins another stream.