n. [ Aëro- + Gr. &unr_; to look out. ] (Biol.) An apparatus designed for collecting spores, germs, bacteria, etc., suspended in the air. [ 1913 Webster ]

n. [ Gr. &unr_; clear + &unr_; to observe. ] An instrument consisting in part of a differential thermometer. It is used for measuring changes of temperature produced by different conditions of the sky, as when clear or clouded. [ 1913 Webster ]

n. [ Gr. &unr_; true + &unr_; to view. ] An instrument for viewing pictures by means of a lens, so as to present them in their natural proportions and relations. [ 1913 Webster ]

n. [ L. altus high + Gr. &unr_; to view. ] An arrangement of lenses and mirrors which enables a person to see an object in spite of intervening objects. Since the early 1900's, most commonly called periscope. [ 1913 Webster ]

n. [ Anamorphosis + -scope. ] An instrument for restoring a picture or image distorted by anamorphosis to its normal proportions. It usually consists of a cylindrical mirror. [ Webster 1913 Suppl. ]

n. [ Gr. &unr_; wind + -scope: cf. F. anémoscope. ] An instrument which shows the direction of the wind; a wind vane; a weathercock; -- usually applied to a contrivance consisting of a vane above, connected in the building with a dial or index with pointers to show the changes of the wind. [ 1913 Webster ]

n. [ Angio- + -scope. ] An instrument for examining the capillary vessels of animals and plants. Morin. [ 1913 Webster ]

n. [ Gr. 'an priv. + 'orqo`s straight + -scope. ] (Physics) An optical toy for producing amusing figures or pictures by means of two revolving disks, on one of which distorted figures are painted. [ 1913 Webster ]

n. [ Astro- + scope. ] An old astronomical instrument, formed of two cones, on whose surface the constellations were delineated. [ 1913 Webster ]

n. [ L. auris + -scope. ] (Med.) An instrument for examining the condition of the ear. [ 1913 Webster ]

n. [ Gr. ba`ros weight + -scope: cf. F. baroscope. ] 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. [ 1913 Webster ]

n. [ Gr. bi`os life + -scope. ] 1. A view of life; that which gives such a view. [ 1913 Webster ]

Bagman's Bioscope: Various Views of Men and Manners. [ Book Title. ] W. Bayley (1824). [ Webster 1913 Suppl. ]

2. An animated picture machine for screen projection; a cinematograph (which see); an archaic term replaced by movie projector. [ archaic ] [ Webster 1913 Suppl. ]

3. a South African movie theater. [ WordNet 1.5 ]

n. [ Gr. &unr_; thunder and lightning + -scope. ] An instrument or apparatus employed in the ancient mysteries to imitate thunder and lightning. T. Moore. [ 1913 Webster ]

n. [ Gr. &unr_; color + -scope. ] An instrument for showing the optical effects of color. [ 1913 Webster ]

n. [ Gr. &unr_;, &unr_;, color + -scope. ] (Astron.) 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. [ 1913 Webster ]

n. [ Gr. &unr_; time + -scope. ] An instrument for measuring minute intervals of time; used in determining the velocity of projectiles, the duration of short-lived luminous phenomena, etc. [ 1913 Webster ]

n. an instrument for measuring freezing and melting points. [ WordNet 1.5 ]

n. [ Cyclone + -scope. ] An apparatus to assist in locating the center of a cyclone. [ Webster 1913 Suppl. ]

n. [ Cyclo- + -scope. ] A machine for measuring at any moment velocity of rotation, as of a wheel of a steam engine. Knight. [ 1913 Webster ]

n. [ Gr. &unr_; wave + -scope. ] (Elec.) Any device for detecting the presence of electric waves. The influence of electric waves on the resistance of a particular kind of electric circuit, on the magnetization of steel, on the polarization of an electrolytic cell, or on the electric condition of a vacuum has been applied in the various cymoscopes. [ Webster 1913 Suppl. ]

n. [ From the inventor, Debus, a French optician + -scope. ] (Opt.) A modification of the kaleidoscope; -- used to reflect images so as to form beautiful designs. [ 1913 Webster ]

n. [ Gr. &unr_; transparent + -scope. ] (Photog.) A dark box constructed for viewing transparent pictures, with or without a lens. [ 1913 Webster ]

n. Same as Dichroscope. [ 1913 Webster ]

n. [ Gr. di- = di`s- twice + &unr_; color + &unr_; to view. ] An instrument for examining the dichroism of crystals. [ 1913 Webster ]

n. [ Gr. &unr_; double + &unr_; image + -scope. ] (Astron.) 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 on the meridian. [ 1913 Webster ]

n. [ L. ebullire to boil up + -scope. ] (Phys. Chem.) 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. [ 1913 Webster ]

n. [ Gr. &unr_;, &unr_;, sound + -scope. ] (Med.) An instrument for intensifying sounds produced by percussion of the thorax. Knight. [ 1913 Webster ]

n. [ Electro- + -scope: cf. F. électroscope. ] (Physics) An instrument for detecting the presence of electricity, or changes in the electric state of bodies, or the species of electricity present, as by means of pith balls, and the like. [ 1913 Webster ]

Condensing electroscope (Physics), a form of electroscope in which an increase of sensibility is obtained by the use of a condenser. [ 1913 Webster ]

n. [ Endo- + -scope. ] (Med.) An instrument for examining the interior of the body, consisting of a flexible tube with lenses and optical fibers permitting illumination of the interior site to be inspected, and visualization of the interior site from outside the body; it often has small surgical instruments attached to the end and manipulable from the outside, permitting biopsy or surgery. It is used as a non-invasive or minimally invasive tool for diagnosis or treatment, especially in organs having an external opening such as the rectum, the urethra, and the bladder. [ 1913 Webster +PJC ]

n. [ Gr. &unr_; near + -scope. ] (Opt.) A kind of reflecting microscope. [ Obs. ] [ 1913 Webster ]

{ ‖, n. [ Sp. escopeta, F. escopette. ] A kind of firearm; a carbine. [ 1913 Webster ]

n. (Med.) an instrument used to examine internal organs. [ WordNet 1.5 ]

n. [ Fluorescence + -scope. ] 1. (Phys.) An instrument for observing or exhibiting fluorescence. [ 1913 Webster ]

2. (Physics) A fluorescent screen, with hood to protect the eyes, used for observing the shadows cast by objects placed in the path of the X rays. -- Flu*or`o*scop"ic a. [Webster 1913 Suppl.]

n. [ Galvanic + -scope: cf. F. galvanoscope. ] (Elec.) An instrument or apparatus for detecting the presence of electrical currents, especially such as are of feeble intensity. [ 1913 Webster ]

n. [ Gas + -scope. ] An apparatus for detecting the presence of any dangerous gas, from a gas leak in a coal mine or a dwelling house. [ 1913 Webster ]

n. [ Gastro- + -scope. ] (Med.) An instrument for viewing or examining the interior of the stomach. [ 1913 Webster ]

n. See Graphoscope. [ 1913 Webster ]

n. [ Gr. gra`fein to write + -scope. ] 1. An optical instrument for magnifying engravings, photographs, etc., usually having one large lens and two smaller ones. [ 1913 Webster ]

2. An optical device for showing (or photographing) an image when projected upon the atmosphere as a screen. [ Webster 1913 Suppl. ]

n. [ Gr. gy^ros ring, circle + -scope. ] 1. A rotating wheel, mounted in a ring or rings, for illustrating the dynamics of rotating bodies, the composition of rotations, etc. It was devised by Professor W. R. Johnson, in 1832, by whom it was called the rotascope. [ 1913 Webster ]

2. A form of the above apparatus, invented by M. Foucault, mounted so delicately as to render visible the rotation of the earth, through the tendency of the rotating wheel to preserve a constant plane of rotation, independently of the earth's motion. [ 1913 Webster ]

n. A haemoscope. [ 1913 Webster ]

n. [ Haemo- + -scope. ] (Physiol.) An instrument devised by Hermann, for regulating and measuring the thickness of a layer of blood for spectroscopic examination. [ 1913 Webster ]

n. [ Gr. "a`gios sacred + -scope.] An opening made in the interior walls of a cruciform church to afford a view of the altar to those in the transepts; -- called, in architecture, a squint. Hook. [1913 Webster]

n. [ Halo + -scope. ] An instrument for exhibition or illustration of the phenomena of halos, parhelia, and the like. [ 1913 Webster ]

n. [ Helio- + -scope: cf. F. hélioscope. ] (Astron.) 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. [ 1913 Webster ]

n. [ F. horoscope, L. horoscopus, fr. Gr. &unr_;, adj., observing hours or times, esp. observing the hour of birth, n., a horoscope; &unr_; hour + &unr_; to view, observe. See Hour, and -scope. ] 1. (Astrol.) (a) The representation made of the aspect of the heavens at the moment of a person's birth, by which the astrologer professed to foretell the events of the person's life; especially, the sign of the zodiac rising above the horizon at such a moment. (b) The diagram or scheme of twelve houses or signs of the zodiac, into which the whole circuit of the heavens was divided for the purposes of such prediction of fortune. [ 1913 Webster ]

2. The planisphere invented by Jean Paduanus. [ 1913 Webster ]

3. A table showing the length of the days and nights at all places. Heyse.

{ } n. One versed in horoscopy; an astrologer. [ 1913 Webster ]

n. A large astromical optical telescope placed into orbit around the earth, from which, in the absence of absorption and distortion by the earth's atmosphere, clear high-resolution images of astronomical objects can be obtained in the visible, infrared, and ultraviolet wavelengths. The telescope was launched into orbit on April 24, 1990. Since then the telescope has taken thousands of images, many of them unique, recording never before seen astronomical phenomena. Service missions were performed in 1993 and 1997, during which astronauts upgraded or replaced equipment on the telescope. Link to Hubble Telescope Information. [ PJC ]

n. [ Hydro-, 1 + -scope. ] 1. An instrument designed to mark the presence of water, especially in air. Weale. [ 1913 Webster ]

2. A kind of water clock, used anciently for measuring time, the water tricking from an orifice at the end of a graduated tube.

n. [ Gr. &unr_; wet + -scope: cf. F. hygroscope. ] (Physics) An instrument which shows whether there is more or less moisture in the atmosphere, without indicating its amount. [ 1913 Webster ]

n. [ Gr. &unr_; + -scope. ] (Physiol.) An instrument for ascertaining the susceptibility of a person to hypnotic influences. [ Webster 1913 Suppl. ]