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The Collaborative International Dictionary of English v.0.48 (gcide)

Sensitive \Sen"si*tive\, a. [F. sensitif. See {Sense}.]
1. Having sense of feeling; possessing or exhibiting the
capacity of receiving impressions from external objects;
as, a sensitive soul.
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2. Having quick and acute sensibility, either to the action
of external objects, or to impressions upon the mind and
feelings; highly susceptible; easily and acutely affected.
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She was too sensitive to abuse and calumny.
--Macaulay.
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3.
(a) (Mech.) Having a capacity of being easily affected or
moved; as, a sensitive thermometer; sensitive scales.
(b) (Chem. & Photog.) Readily affected or changed by
certain appropriate agents; as, silver chloride or
bromide, when in contact with certain organic
substances, is extremely sensitive to actinic rays.
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4. Serving to affect the sense; sensible. [R.]
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A sensitive love of some sensitive objects.
--Hammond.
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5. Of or pertaining to sensation; depending on sensation; as,
sensitive motions; sensitive muscular motions excited by
irritation. --E. Darwin.
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{Sensitive fern} (Bot.), an American fern ({Onoclea
sensibilis}), the leaves of which, when plucked, show a
slight tendency to fold together.

{Sensitive flame} (Physics), a gas flame so arranged that
under a suitable adjustment of pressure it is exceedingly
sensitive to sounds, being caused to roar, flare, or
become suddenly shortened or extinguished, by slight
sounds of the proper pitch.

{Sensitive joint vetch} (Bot.), an annual leguminous herb
({Aeschynomene hispida}), with sensitive foliage.

{Sensitive paper}, paper prepared for photographic purpose by
being rendered sensitive to the effect of light.

{Sensitive plant}. (Bot.)
(a) A leguminous plant ({Mimosa pudica}, or {Mimosa
sensitiva}, and other allied species), the leaves of
which close at the slightest touch.
(b) Any plant showing motions after irritation, as the
sensitive brier ({Schrankia}) of the Southern States,
two common American species of {Cassia} ({Cassia
nictitans}, and {Cassia Chamaecrista}), a kind of
sorrel ({Oxalis sensitiva}), etc.
[1913 Webster] -- {Sen"si*tive*ly}, adv. --
{Sen"si*tive*ness}, n.
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classified \classified\ adj.
1. arranged into classes or categories; as, {unclassified}.

Syn: categorized.
[WordNet 1.5 PJC]

2. assigned to a class of documents withheld from general
circulation; -- of information or documents. Opposite of
{unclassified}.

Note: [Narrower terms: {eyes-only}; {confidential};
{restricted}; {secret}; {sensitive}; {top-secret}]
[WordNet 1.5]