The Sailor's Word-Book / An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc.

by W. H. Smyth

SENTINEL, or Sentry. A soldier, marine, or seaman placed upon any post, to watch and enforce any specific order with which he may be intrusted.

SENTRY GO! The order to the new sentry to proceed to the relief of the previous one.

SEQUIN. A Turkish and Venetian gold coin of the current value of 6s. 11d.

SERANG. A boatswain of Lascars.

SERASKIER. A Turkish general.

SERGEANT. The senior non-commissioned rank in the army and marines.

SERGEANT-MAJOR. The senior sergeant in a regiment, or first non-commissioned officer; usually a zealous and thorough soldier.

SERON. A commercial package of Spanish America, made of green bullock's-hide with the hair on.

SERPENTARIUS. See [Ophiuchus].

SERPENTIN. An ancient 24-pounder gun, the dolphins of which represented serpents; it was 13 feet long, and weighed 4360 lbs.