directional

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di·rec·tion·al / diˈrekshənl/ • adj. 1. relating to or indicating the direction in which someone or something is situated, moving, or developing: directional signs wherever two paths joined. 2. having a particular direction of motion, progression, or orientation: coiling the wire permits directional flow of the magnetic flux. ∎  relating to, denoting, or designed for the projection, transmission, or reception of light, radio, or sound waves in or from a particular direction or directions: a directional microphone. DERIVATIVES: di·rec·tion·al·i·ty / diˌrekshəˈnalitē/ n. di·rec·tion·al·ly adv.

directional •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