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rite a fair copy of in distinct and legible characters; as, to engross a deed or like instrument on parchment. Some period long past, when clerks engrossed their stiff and formal chirography on more substantial materials. Hawthorne. Laws that may be engrossed on a finger nail. De Quincey.

That which has been engrossed, as an instrument, legislative bill, goods, etc.

Pertaining to a change of notes to the eye, while, as the same keys are used, the instrument can mark no difference to the ear, as the substitution of A for G#.

pertaining to the equator; as, equatorial climates; also, pertaining to an equatorial instrument.

One who, or that which, erases; esp., a sharp instrument or a piece of rubber used to erase writings, drawings, etc.

An attachment to a microscope, telescope, or other optical instrument, for making the image erect instead of inverted.

An instrument for measuring energy in ergs.

An instrument for measuring and recording the work done by a single muscle or set of muscles, the rate of fatigue, etc. -- Er`go*graph"ic (#), a.

A device for measuring, or an instrument for indicating, energy expended or work done; a dynamometer. -- Er`go*met"ric (#), a.

An instrument for measuring the diameters of minute particles or fibers, from the size of the colored rings produced by the diffraction of the light in which the objects are viewed.

rtant as revealing the molecular structure. -- Etching needle, a sharp-pointed steel instrument with which lines are drawn in the ground or varnish in etching. -- Etching stitch (Needlework), a stitch used outline embroidery.

An instrument for the volumetric measurement of gases; -- so named because frequently used to determine the purity of the air.

An instrument in which are combined the characteristic tones of the organ and various other instruments. [R.]

A bass instrument of the saxhorn family.

An instrument resembling the organ in tine and the upright piano in form. It is characterized by great strength and sweetness of tone.

ining to the Eustachian tube; as, Eustachian catheter. Eustachian catheter, a tubular instrument to be introduced into the Eustachian tube so as to allow of inflation of the middle ear through the nose or mouth. -- Eustrachian tube (Anat.), a passage from the tympanum of the ear to the pharynx. See Ear. -- Eustachian…

An instrument for ascertaining the quantity of a fluid evaporated in a given time; an atmometer.

To elevate the tone of, as of the voice or a musical instrument. Is. xxxvii. 23. Now Mars, she said, let Fame exalt her voice. Prior.

of excising or cutting out or off; extirpation; destruction. Such conquerors are the instruments of vengeance on those nations that have . . . grown ripe for excision. Atterbury.

One who executes or performs; esp., a performer on a musical instrument. Great executants on the organ. De Quincey.