Found 1 items, similar to Sympathetic ink.
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Definition: Sympathetic ink
Ink
\Ink\, n. [OE. enke, inke, OF. enque, F. encre, L. encaustum
the purple red ink with which the Roman emperors signed their
edicts, Gr. ?, fr. ? burnt in, encaustic, fr. ? to burn in.
See
Encaustic,
Caustic.]
1. A fluid, or a viscous material or preparation of various
kinds (commonly black or colored), used in writing or
printing.
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Make there a prick with ink. --Chaucer.
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Deformed monsters, foul and black as ink. --Spenser.
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2. A pigment. See
India ink, under
India.
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Note: Ordinarily, black ink is made from nutgalls and a
solution of some salt of iron, and consists essentially
of a tannate or gallate of iron; sometimes indigo
sulphate, or other coloring matter, is added. Other
black inks contain potassium chromate, and extract of
logwood, salts of vanadium, etc. Blue ink is usually a
solution of Prussian blue. Red ink was formerly made
from carmine (cochineal), Brazil wood, etc., but
potassium eosin is now used. Also red, blue, violet,
and yellow inks are largely made from aniline dyes.
Indelible ink is usually a weak solution of silver
nitrate, but carbon in the form of lampblack or India
ink, salts of molybdenum, vanadium, etc., are also
used. Sympathetic inks may be made of milk, salts of
cobalt, etc. See
Sympathetic ink (below).
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Copying ink, a peculiar ink used for writings of which
copies by impression are to be taken.
Ink bag (Zo["o]l.), an ink sac.
Ink berry. (Bot.)
(a) A shrub of the Holly family (
Ilex glabra), found in
sandy grounds along the coast from New England to
Florida, and producing a small black berry.
(b) The West Indian indigo berry. See
Indigo.
Ink plant (Bot.), a New Zealand shrub (
Coriaria thymifolia
), the berries of which yield a juice which
forms an ink.
Ink powder, a powder from which ink is made by solution.
Ink sac (Zo["o]l.), an organ, found in most cephalopods,
containing an inky fluid which can be ejected from a duct
opening at the base of the siphon. The fluid serves to
cloud the water, and enable these animals to escape from
their enemies. See Illust. of
Dibranchiata.
Printer's ink, or
Printing ink. See under
Printing.
Sympathetic ink, a writing fluid of such a nature that what
is written remains invisible till the action of a reagent
on the characters makes it visible.
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Sympathetic
\Sym`pa*thet"ic\, a. [See
Sympathy, and cf.
Pathetic.]
1. Inclined to sympathy; sympathizing.
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Far wiser he, whose sympathetic mind
Exults in all the good of all mankind. --Goldsmith.
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2. Produced by, or expressive of, sympathy.
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Ope the sacred source of sympathetic tears. --Gray.
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3. (Physiol.)
(a) Produced by sympathy; -- applied particularly to
symptoms or affections. See
Sympathy.
(b) Of or relating to the sympathetic nervous system or
some of its branches; produced by stimulation on the
sympathetic nervious system or some part of it; as,
the sympathetic saliva, a modified form of saliva,
produced from some of the salivary glands by
stimulation of a sympathetic nerve fiber.
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Sympathetic ink. (Chem.) See under
Ink.
Sympathetic nerve (Anat.), any nerve of the sympathetic
system; especially, the axial chain of ganglions and
nerves belonging to the sympathetic system.
Sympathetic powder (Alchemy), a kind of powder long
supposed to be able to cure a wound if applied to the
weapon that inflicted it, or even to a portion of the
bloody clothes. --Dunglison.
Sympathetic sounds (Physics), sounds produced from solid
bodies by means of vibrations which have been communicated
to them from some other sounding body, by means of the air
or an intervening solid.
Sympathetic system (Anat.), a system of nerves and nerve
ganglions connected with the alimentary canal, the
vascular system, and the glandular organs of most
vertebrates, and controlling more or less their actions.
The axial part of the system and its principal ganglions
and nerves are situated in the body cavity and form a
chain of ganglions on each side of the vertebral column
connected with numerous other ganglions and nerve
plexuses.
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