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An instrument for measuring the harmonic relations of sounds. It is often a monochord furnished with movable bridges.

A musical instrument consisting of a triangular frame furnished with strings and sometimes with pedals, held upright, and played with the fingers.

A harp-shaped instrument of music set horizontally on legs, like the grand piano, with strings of wire, played by the fingers, by means of keys provided with quills, instead of hammers, for striking the strings. It is now superseded by the piano.

A worn-out strumpet; a vixenish woman; a hag. Such a weak, watery, wicked old harridan, substituted for the pretty creature I had been used to see. De Quincey.

. See under 6th Drill. -- Under the harrow, subjected to actual torture with a toothed instrument, or to great affliction or oppression.

An instrument for cutting the surface of grass land; a scarifier.

An instrument with long iron teeth set in a board, for cleansing flax or hemp from the tow, hards, or coarse part; a kind of large comb; -- called also hackle and heckle.

A wind instrument, sounded through a reed, and similar in shape to the clarinet, but with a thinner tone. Now more commonly called oboe. See Illust. of Oboe.

plants. It is also called hay asthma, hay cold, and rose fever. -- Hay knife, a sharp instrument used in cutting hay out of a stack or mow. -- Hay press, a press for baling loose hay. -- Hay tea, the juice of hay extracted by boiling, used as food for cattle, etc. -- Hay tedder, a machine for spreading and turning…

An instrument for drawing spiral lines on a plane.

An instrument for taking photographs of the sun.

An instrument devised originally for measuring the diameter of the sun; now employed for delicate measurements of the distance and relative direction of two stars too far apart to be easily measured in the field of view of an ordinary telescope.

A telescope or instrument for viewing the sun without injury to the eyes, as through colored glasses, or with mirrors which reflect but a small portion of light. -- He`li*o*scop`ic, a.

An instrument consisting of a mirror moved by clockwork, by which a sunbeam is made apparently stationary, by being steadily directed to one spot during the whole of its diurnal period; also, a geodetic heliotrope.

An instrument or machine for showing when the sun arrived at the tropics and equinoctial line.

An instrument for measuring the velocity with which the blood moves in the arteries.

An instrument by which the pressure of the blood in the arteries, or veins, is measured by the height to which it will raise a column of mercury; -- called also a hæmomanometer.

To cut with an ax; to fell with a sharp instrument; -- often with down, or off. Shak.

An instrument for making of angular measurements.

as of metal, covered with an abrading substance or powder, used for sharpening cutting instruments, and especially for setting razors; an oilstone. Tusser. Hone slateSee Polishing slate. -- Hone stone, one of several kinds of stone used for hones. See Novaculite.