ultramicroscope

ultramicroscope
—ultramicroscopic /ul'treuh muy'kreuh skop"ik/, ultramicroscopical, adj.
/ul'treuh muy"kreuh skohp'/, n.
an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
[1905-10; ULTRA- + MICROSCOPE]

* * *

      microscope arrangement used to study colloidal-size particles that are too small to be visible in an ordinary light microscope. The particles, usually suspended in a liquid, are illuminated with a strong light beam perpendicular to the optical axis of the microscope. These particles scatter light, and their movements are seen only as flashes against a dark background; their structure is not resolved.

* * *


Universalium. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • ultramicroscope — [ yltramikrɔskɔp ] n. m. • 1904; de ultra et microscope ♦ Sc. Microscope optique où un éclairage spécial permet de voir des particules trop petites pour être observées au moyen du microscope ordinaire. ● ultramicroscope nom masculin Microscope… …   Encyclopédie Universelle

  • ultramicroscope — ► NOUN ▪ an optical microscope used to detect very small particles by observing light scattered from them …   English terms dictionary

  • ultramicroscope — [ul΄trəmī′krə skōp΄] n. an instrument equipped to pick up the reflections of light rays dispersed by ultramicroscopic objects lighted from the side and against a dark background, thus making them visible: used esp. in the study of colloidal… …   English World dictionary

  • ultramicroscope — ultramikroskopas statusas T sritis Standartizacija ir metrologija apibrėžtis Mikroskopas, kuriuo matomos mažesnės negu 0,1 μm dalelės. atitikmenys: angl. hypermicroscope; ultra microscope; ultramicroscope vok. Übermikroskop, n; Ultramikroskop, n… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • ultramicroscope — ultramikroskopas statusas T sritis fizika atitikmenys: angl. hypermicroscope; ultramicroscope vok. Übermikroskop, n; Ultramikroskop, n rus. ультрамикроскоп, m pranc. ultramicroscope, m …   Fizikos terminų žodynas

  • Ultramicroscope — The ultramicroscope is a system of illumination for extremely small objects such as colloidal particles, fog droplets, or smoke particles. The objects are held in liquid or gaseous suspension in an enclosure with an intensely black background… …   Wikipedia

  • ultramicroscope —   n. instrument for viewing particles too small to be seen by ordinary microscope.    ♦ ultramicroscopic, a. pertaining to or visible only with ultramicroscope.    ♦ ultramicroscopy, n …   Dictionary of difficult words

  • ultramicroscope — ultramikroskopas statusas T sritis chemija apibrėžtis Optinis mikroskopas, kuriuo matomas vaizdas gaunamas naudojant šoninį apšvietimą (stebimas dalelių švytėjimas proporcingas jų matmenims). atitikmenys: angl. hypermicroscope; ultramicroscope… …   Chemijos terminų aiškinamasis žodynas

  • ultramicroscope — noun Etymology: back formation from ultramicroscopic Date: 1906 an apparatus for making visible by scattered light particles too small to be perceived by an ordinary microscope …   New Collegiate Dictionary

  • ultramicroscope — noun a microscope that uses bright illumination against a black background to view small particles …   Wiktionary

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”