diagonal

diagonal

di·ag·o·nal / dīˈagənl/ (abbr.: diag.) • adj. (of a straight line) joining two opposite corners of a square, rectangle, or other straight-sided shape. ∎  (of a line) straight and at an angle; slanting: a tie with diagonal stripes. • n. a straight line joining two opposite corners of a square, rectangle, or other straight-sided shape. ∎  Math. the set of elements of a matrix that lie on a line joining two opposite corners. ∎  a slanting straight pattern or line: the bars of light made diagonals across the entrance tiles can be laid on the diagonal. ∎  Chess a slanting row of squares whose color is the same. DERIVATIVES: di·ag·o·nal·ly adv.

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"diagonal." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

"diagonal." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O999-diagonal.html

"diagonal." The Oxford Pocket Dictionary of Current English. 2009. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-diagonal.html

Learn more about citation styles

diagonal

diagonal A flat mirror or prism that reflects a light beam through 90 °, for example the secondary mirror in a Newtonian reflector. A star diagonal, consisting of a short tube into which the eyepiece fits, is used in refractors to give a more comfortable viewing position, while a Sun diagonal is similar but has a non-silvered mirror to cut down the light intensity. Both of these have the drawback that they give a laterally inverted mirror image.

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"diagonal." A Dictionary of Astronomy. 1997. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

"diagonal." A Dictionary of Astronomy. 1997. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O80-diagonal.html

"diagonal." A Dictionary of Astronomy. 1997. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-diagonal.html

Learn more about citation styles

diagonal

diagonal XVI. — L. diagōnālis, f. Gr. diagṓnios, f. DIA- + gōníā angle; see -AL 1.

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

T. F. HOAD. "diagonal." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

T. F. HOAD. "diagonal." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O27-diagonal.html

T. F. HOAD. "diagonal." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-diagonal.html

Learn more about citation styles

diagonal

diagonal. See buttress and vault.

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

JAMES STEVENS CURL. "diagonal." A Dictionary of Architecture and Landscape Architecture. 2000. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

JAMES STEVENS CURL. "diagonal." A Dictionary of Architecture and Landscape Architecture. 2000. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O1-diagonal.html

JAMES STEVENS CURL. "diagonal." A Dictionary of Architecture and Landscape Architecture. 2000. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O1-diagonal.html

Learn more about citation styles

diagonal

diagonalannal, channel, flannel, impanel, multichannel, panel •cracknel •grapnel, shrapnel •carnal •antennal, crenel, fennel, kennel •regnal •anal, decanal •adrenal, officinal, penal, renal, venal •signal, spignel •hymnal • cardinal • libidinal • ordinal •attitudinal, latitudinal, longitudinal •altitudinal •imaginal, paginal •marginal, submarginal •aboriginal • virginal • disciplinal •seminal •criminal, liminal, subliminal •abdominal, nominal, phenomenal, pronominal •noumenal •germinal, terminal •vaticinal, vicinal •sentinel • intestinal • Juvenaldoctrinal, final, semi-final, spinal, urinal, vaginal •quarterfinal •cantonal, O'Connell •cornel • nounal •atonal, Donal, hormonal, Monel, patronal, polytonal, tonal, zonal •motional •lagoonal, monsoonal, tribunal •communal •Chunnel, funnel, gunnel, gunwale, runnel, tunnel •autumnal • meridional •embryonal, Lionel •diagonal, heptagonal, hexagonal, octagonal, tetragonal •trigonal • orthogonal • occasional •divisional, provisional, visional •delusional, fusional, illusional •regional • original • coronal • arsenal •medicinal •impersonal, interpersonal, personal, transpersonal •irrational, national, passional, rational •factional, fractional, redactional, transactional •confessional, congressional, expressional, impressional, obsessional, processional, professional, progressional, recessional, secessional, sessional, successional •connectional, correctional, directional, interjectional, intersectional, sectional, unidirectional •ascensional, attentional, conventional, declensional, intentional, tensional, three-dimensional, two-dimensional •conceptional, exceptional, perceptional •durational, locational, oblational, relational, vocational •rotational •additional, positional, tuitional, volitional •fictional, jurisdictional •inscriptional • optional • proportional •devotional, emotional, notional, promotional •constitutional, evolutional, institutional, substitutional •constructional, fluxional, instructional •conjunctional, dysfunctional, functional, multifunctional •versional • seasonal •colonel, diurnal, eternal, external, fraternal, infernal, internal, journal, kernel, maternal, nocturnal, paternal, supernal, vernal

Show all research tools

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"diagonal." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

"diagonal." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O233-diagonal.html

"diagonal." Oxford Dictionary of Rhymes. 2007. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-diagonal.html

Learn more about citation styles

Free newspaper and magazine articles

Understanding volumetric positioning errors: body diagonal measurement is not...
Magazine article from: Tooling &amp; Production; 9/1/2005
Guide the eye and energize content with diagonals: we can find subjects that...
Magazine article from: Communication World; 7/1/2010
Diagonal shear behaviour of unreinforced masonry wallettes strengthened using...
Magazine article from: Construction and Building Materials; 10/18/2011

Facts and information from other sites

Pictures from Google Image Search

Click to see an enlarged picture
Click to see an enlarged picture
Click to see an enlarged picture

See more pictures of diagonal