tetragonal

All Sources -
Updated Media sources (1) About encyclopedia.com content Print Topic Share Topic
views updated

tetragonalannal, 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

views updated

tetragonal One of the seven crystal systems, with two sets of edges of the same length and a third which is either longer or shorter than the other two. The lattice may be referred to three crystallographic axes, a1, a2, and c (or x, y, and z) where a1 and a2 (or x and y) are equal, and c (or z) may be longer or shorter. All three axes are at right angles.

views updated

te·trag·o·nal / teˈtragənl/ • adj. of or denoting a crystal system or three-dimensional geometric arrangement having three axes at right angles, two of them equal. DERIVATIVES: te·trag·o·nal·ly adv.