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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. |
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"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 |
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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.
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"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 |
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diagonal
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Cite this article
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 |
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diagonal
diagonal. See buttress and vault.
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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 |
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diagonal
diagonal
•annal, 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 • Juvenal
•doctrinal, 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
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Cite this article
"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 |
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