ther·mi·on (thurґme-on) a particle containing an electric charge emitted by an incandescent substance, such as the electrons emitted from the cathode in a Coolidge tube.

Medical dictionary. 2011.

Look at other dictionaries:

  • thermion — [thʉr′mī΄ən, thʉr′mēən] n. [ THERM(O) + ION] Physics a negative or positive ion emitted by an incandescent material thermionic [thʉrm΄ī΄än′ik, thʉr′mə΄än′ik] adj …   English World dictionary

  • thermion — šiluminis elektronas statusas T sritis fizika atitikmenys: angl. thermal electron; thermionic electron; thermoelectron vok. Glühelektron, n; Thermoelektron, n rus. термоэлектрон, m pranc. thermion, m; thermo électron, m …   Fizikos terminų žodynas

  • thermion — thermionic, adj. thermionically, adv. /therrm uy euhn, on; therr mee euhn/, n. Physics. an ion emitted by incandescent material. [1910 15; THERM + ION] * * * …   Universalium

  • thermion — noun An electrically charged particle, either an electron or an ion, emitted by a conducting material at high temperatures …   Wiktionary

  • thermion — therm·ion …   English syllables

  • thermion — therm•i•on [[t]ˈθɜrmˌaɪ ən, ɒn; ˈθɜr mi ən[/t]] n. phs an ion emitted by incandescent material • Etymology: 1910–15 therm i•on′ic, adj …   From formal English to slang

  • thermion — /ˈθɜmiən/ (say thermeeuhn) noun any of a class of electrically charged particles such as ions or electrons emitted by incandescent materials. {therm + ion} …   Australian English dictionary

  • thermion —   n. ion emitted by incandescent object or substance.    ♦ thermionic, a.    ♦ thermionic    ♦ valve, vacuum tube with several electrodes cathode, anode, and grid(s) the heated cathode emitting electrons …   Dictionary of difficult words

  • thermion — noun an electrically charged particle (electron or ion) emitted by a substance at a high temperature • Derivationally related forms: ↑thermionic • Hypernyms: ↑particle, ↑subatomic particle …   Useful english dictionary

  • thermidor see LOBSTER. — thermion n. an ion or electron emitted by a substance at high temperature. Etymology: THERMO + ION …   Useful english dictionary

Share the article and excerpts

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

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.