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; to strengthen; to stiffen; to inure; also, to confirm in wickedness or shame; to make unimpressionable. "Harden not your heart." Ps. xcv. 8. I would harden myself in sorrow. Job vi. 10.

f transferring pictures from photographic negatives to hardened gelatin plates from which impressions are produced on paper as by lithography.

Contact or impression by touch; collision; forcible contact; force communicated. The quarrel, by that impact driven. Southey.

Insusceptibility of intellectual or emotional impression; obtuseness; stupidity; coldness.

hing in or upon; to mark by pressure, or as by pressure; to imprint (that which bears the impression). His heart, like an agate, with your print impressed. Shak.

Making, or tending to make, an impression; having power to impress; adapted to excite attention and feeling, to touch the sensibilities, or affect the conscience; as, an impressive discourse; an impressive scene.

Dent; impression. [Obs.] Shak.

A print; impression.

canceled, lost, or forgotten; as, indelible characters; an indelible stain; an indelible impression on the memory.

A stamp; an impression. [Obs.]

Indentation; an impression like that made by a tooth.

e, used for printing from engravings, woodcuts, etc. -- India proof (Engraving), a proof impression from an engraved plate, taken on India paper. -- India rubber. See Caoutchouc. -- India-rubber tree (Bot.), any tree yielding caoutchouc, but especially the East Indian Ficus elastica, often cultivated for its large,…

ed to certain nerve centers which govern or restrain subsidiary centers, from which motor impressions issue. McKendrick.

ural faculties, may attain to all the knowledge they have, without the help of any innate impressions; and may arrive at certainty without any such original notions or principles. Locke.

Communicating or transmitting impressions between different parts of the body; -- said of the nervous system. Carpenter.

slit in a revolving disk, and these glimpses, blended by persistence of vision, give the impression of continuous motion.

Without deep impression. The soft ideas of the cheerful note, Lightly received, were easily forgot. Prior.

of putting designs or writing, with a greasy material, on stone, and of producing printed impressions therefrom. The process depends, in the main, upon the antipathy between grease and water, which prevents a printing ink containing oil from adhering to wetted parts of the stone not covered by the design. See Lithograp…

A fossil leaf or impression of a leaf.

tained from a tree (Macaranga Indica) that grows in the East Indies. It is used in taking impressions of coins, medallions, etc., and sometimes as a medicine. Balfour (Cyc. of India).