electron-tube instrument
1tube — [ tyb ] n. m. • 1611; « voûte » mot région. (Nord) 1453; lat. tubus 1 ♦ Appareil de forme cylindrique, ou conduit à section circulaire, généralement rigide (verre, quartz, plastique, métal), ouvert à une extrémité ou aux deux. Calibre d un tube.… …
2tube — [to͞ob, tyo͞ob] n. [Fr < L tubus, a pipe] 1. a) a hollow cylinder or pipe of metal, glass, rubber, etc., usually long in proportion to its diameter, used for conveying fluids, etc. b) an instrument, part, organ, etc. resembling a tube… …
3electron telescope — noun : an electron optical instrument that penetrates obstacles to vision (as fog, smoke, darkness, or distance) by means of infrared rays, the image being focused on a photosensitive cathode that in turn produces the final enlarged electron… …
4tube — noun Etymology: French, from Latin tubus; akin to Latin tuba trumpet Date: 1651 1. any of various usually cylindrical structures or devices: as a. a hollow elongated cylinder; especially one to convey fluids b. a soft tubular container whose… …
5electron microscope — n. an instrument that focuses a beam of electrons on an object, using electric or magnetic fields, to form an enlarged image of the object on a fluorescent screen, photographic plate, or cathode ray tube; specif., such an instrument in which the… …
6electron telescope — n. an instrument using a cathode ray tube to form a visible image of infrared rays brought into focus from a distant object by optical lenses …
7Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …
8Électron — Traduction à relire Electron → …
9Tube cathodique — Photo du tube cathodique se trouvant à l’intérieur d’un téléviseur …
10Tube — A long hollow cylinder. There are many tube like structures in the human body, such as the auditory tube (Eustachian tube) in the ear. * * * 1. A hollow cylindrical structure or canal. 2. A hollow cylinder or pipe. SYN: tuba [TA]. [L. tubus]… …
