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An instrument for detecting the compass error.

district, whose particular duties are the preservation of good order, the prevention and detection of crime, and the enforcement of the laws.

acity; wit. The very policy of a hostess, finding his purse so far above his clothes, did detect him. Fuller.

o read between the lines, to infer something different from what is plainly indicated; to detect the real meaning as distinguished from the apparent meaning.

A substance capable of producing with another a reaction, especially when employed to detect the presence of other bodies; a test.

d, by a separate exposure, on the same plate with star images to facilitate measurements, detect changes of the film, etc.

To look at again for the detection of errors; to reëxamine; to review; to look over with care for correction; as, to revise a writing; to revise a translation.

An instrument for detecting the presence or movement of currents, as of electricity.

A detective. [Slang, Eng.] Dickens.

The state or quality of being hidden; as, his movements were detected in spite of their secrecy. The Lady Anne, Whom the king hath in secrecy long married. Shak.

The detective service of a government. In the United States, in time of peace the bureau of secret service is under the treasury department, and in time of war it aids the war department in securing information concerning the movements of the enemy.

a shadow; to follow and watch closely, especially in a secret or unobserved manner; as, a detective shadows a criminal.

An instrument for detecting small quantities of iron in any substance by means of a very delicate combination of magnetic needles.

imilar; likeness; resemblance; as, a similarity of features. Hardly is there a similarity detected between two or three facts, than men hasten to extend it to all. Sir W. Hamilton.

To detect or perceive, as if by the sense of smell; to scent out; -- often with out. "I smell a device." Shak. Can you smell him out by that Shak.

To smell out; to hunt out; to find out; to detect. I alone Smoked his true person, talked with him. Chapman. He was first smoked by the old Lord Lafeu. Shak. Upon that . . . I began to smoke that they were a parcel of mummers. Addison.

To mark or note so as to insure recognition; to recognize; to detect; as, to spot a criminal. [Cant]

To become steep or steeper. As the way steepened . . . I could detect in the hollow of the hill some traces of the old path. H. Miller.

arm of phonograph which sits in the groove of a phonograph record while it is turning, to detect the undulations in the phonograph groove and convert them into vibrations which are transmitted to a system (since 1920 electronic) which converts the signal into sound; also called needle. The stylus is frequently composed…

An instrument for detecting or measuring minute extension or movements of solid bodies. It consists essentially of a small rod, disk, or button of carbon, forming part of an electrical circuit, the resistance of which, being varied by the changes of pressure produced by the movements of the object to be measured, cause…