DICTIONARY OF

Seaworthy 300 Segmental Bar
Seaworthy. Said of a vessel when in all respects fit to carry a proposed cargo, or passengers.
2. Capable of withstanding risks incidental to the sea.
Seaworthiness. In a limited sense, is a vessel's fitness to withstand the action of the sea,
wind, and weather. In a broader, and legal, sense, it requires that the vessel must be handled
and navigated competently, fully manned, adequately stored, and in all respects fit to carry
the cargo loaded.
Second. Sixtieth part of a minute of time. 2. Sixtieth part of a minute of arc.
Secondary. Applied to a circle, cold front, depression, meridian, or port, to distinguish it
from a primary. Often used to denote a secondary depression.
Secondary Circle. Any great circle whose plane is perpendicular to a primary circle. It
follows that a secondary circle will contain the axis and poles of the primary; and that the
primary will contain the axes and poles of all its secondaries.
Secondary Cold Front. Front of polar air following first cold front.
Secondary Depression. Second area of low pressure formed inside a meteorological
depression. Generally moves round primary depression, and may combine with it.
Secondary Meridian. Meridian whose position has been determined absolutely or
astronomically, and not by reference to a prime meridian.
Secondary Port. Port, or position, whose tidal phenomena are deduced by reference to tides
at an appropriate standard port.
Second Class Paper. Written undertakings to pay, whose financial value is open to doubt.
Second Differences. Differences that affect a primary difference when the variation in value
of a quantity is not uniform.
Second Futtock. Second portion of rib of a wooden vessel, counting from keel.
Second Greaser. Old nickname for a second mate.
Second Hand. Person next below Skipper of a fishing-vessel, usually certificated.
Second Rate. Former classification of a warship carrying 90 to 100 guns. In U.S.N., was a
vessel of 2000 to 3000 tons.
Secret Block. Block in which sheave is completely covered except for a small lead to
swallow of block.
Sector. Arc between two radii, or two lines of bearing.
Secular. Pertaining to, or connected with, the passing of time.
Secure. To make fast so that displacement cannot occur.
Securite (Safety). A radiotelephone message prefixed by the spoken word, 'say-cur-ee-tay',
indicates that a message concerning the safety of navigation or giving important
meteorological warning is about to be made.
Seel. The roll of a vessel at sea.
Segmental Bar. Rolled steel having section that is semi-circular, or nearly so.