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The cutting off, or omission, of the last letter, syllable, or part of a word.

An old astronomical instrument, formed of two cones, on whose surface the constellations were delineated.

An instrument for examining the condition of the ear.

Any instrument showing the changes in the weight of the atmosphere; also, less appropriately, any instrument that indicates - or foreshadows changes of the weather, as a deep vial of liquid holding in suspension some substance which rises and falls with atmospheric changes.

A view of life; that which gives such a view.

An instrument or apparatus employed in the ancient mysteries to imitate thunder and lightning. T. Moore.

An instrument for showing the optical effects of color.

A reflecting telescope, part of which is made to rotate eccentrically, so as to produce a ringlike image of a star, instead of a point; -- used in studying the scintillation of the stars.

An instrument for measuring minute intervals of time; used in determining the velocity of projectiles, the duration of short-lived luminous phenomena, etc.

An apparatus to assist in locating the center of a cyclone.

A machine for measuring at any moment velocity of rotation, as of a wheel of a steam engine. Knight.

lytic cell, or on the electric condition of a vacuum has been applied in the various cymoscopes.

A modification of the kaleidoscope; -- used to reflect images so as to form beautiful designs.

Tmesis.

A dark box constructed for viewing transparent pictures, with or without a lens.

Same as Dichroscope.

An instrument for examining the dichroism of crystals.

An instrument for determining the time of apparent noon. It consists of two mirrors and a plane glass disposed in the form of a prism, so that, by the reflections of the sun's rays from their surfaces, two images are presented to the eye, moving in opposite directions, and coinciding at the instant the sun's center is…

An instrument for observing the boiling point of liquids, especially for determining the alcoholic strength of a mixture by the temperature at which it boils.

An instrument for intensifying sounds produced by percussion of the thorax. Knight.