航海气压计
船舶气压表
船用气压计
船用晴雨表

Marine \Ma*rine"\, a. [L. marinus, fr. mare the sea: cf. F.
marin. See {Mere} a pool.]
1. Of or pertaining to the sea; having to do with the ocean,
or with navigation or naval affairs; nautical; as, marine
productions or bodies; marine shells; a marine engine.

2. (Geol.) Formed by the action of the currents or waves of
the sea; as, marine deposits.

{Marine acid} (Chem.), hydrochloric acid. [Obs.]

{Marine barometer}. See under {Barometer}.

{Marine corps}, a corps formed of the officers,
noncommissioned officers, privates, and musicants of
marines.

{Marine engine} (Mech.), a steam engine for propelling a
vessel.

{Marine glue}. See under {Glue}.

{Marine insurance}, insurance against the perils of the sea,
including also risks of fire, piracy, and barratry.

{Marine interest}, interest at any rate agreed on for money
lent upon respondentia and bottomry bonds.

{Marine law}. See under {Law}.

{Marine league}, three geographical miles.

{Marine metal}, an alloy of lead, antimony, and mercury, made
for sheathing ships. --Mc Elrath.

{Marine soap}, cocoanut oil soap; -- so called because, being
quite soluble in salt water, it is much used on shipboard.


{Marine store}, a store where old canvas, ropes, etc., are
bought and sold; a junk shop. [Eng.]


Barometer \Ba*rom"e*ter\, n. [Gr. ba`ros weight + -meter: cf. F.
barom[`e]tre.]
An instrument for determining the weight or pressure of the
atmosphere, and hence for judging of the probable changes of
weather, or for ascertaining the height of any ascent.

Note: The barometer was invented by Torricelli at Florence
about 1643. It is made in its simplest form by filling
a graduated glass tube about 34 inches long with
mercury and inverting it in a cup containing mercury.
The column of mercury in the tube descends until
balanced by the weight of the atmosphere, and its rise
or fall under varying conditions is a measure of the
change in the atmospheric pressure. At the sea level
its ordinary height is about 30 inches (760
millimeters). See {Sympiesometer}. --Nichol.

{Aneroid barometer}. See {Aneroid barometer}, under
{Aneroid}.

{Marine barometer}, a barometer with tube contracted at
bottom to prevent rapid oscillations of the mercury, and
suspended in gimbals from an arm or support on shipboard.


{Mountain barometer}, a portable mercurial barometer with
tripod support, and long scale, for measuring heights.

{Siphon barometer}, a barometer having a tube bent like a
hook with the longer leg closed at the top. The height of
the mercury in the longer leg shows the pressure of the
atmosphere.

{Wheel barometer}, a barometer with recurved tube, and a
float, from which a cord passes over a pulley and moves an
index.