[ih-fruhn-tuh-ree] /ɪˈfrʌn tə ri/
noun, plural effronteries.
shameless or impudent boldness; barefaced audacity:
She had the effrontery to ask for two free samples.
an act or instance of this.
noun (pl) -ies
shameless or insolent boldness; impudent presumption; audacity; temerity
1715, from French effronterie, from effronté “shameless,” from Old French esfronte “shameless, brazen,” probably from Late Latin effrontem (nominative effrons) “barefaced,” from Latin ex- “out” (see ex-) + frontem (nominative frons) “brow” (see front (n.)).
Latin frontus had a sense of “ability to blush,” but the literal sense of effrontery often has been taken to be “putting forth the forehead.” Forehead in Johnson’s Dictionary (1755) has a secondary sense of “impudence; confidence; assurance; audaciousness; audacity.”
[ih-fuhl-juh ns, ih-foo l‐] /ɪˈfʌl dʒəns, ɪˈfʊl‐/ noun 1. a brilliant radiance; a shining forth. n. 1660s, from Late Latin effulgentia (from Latin effulgentum; see effulgent) + -ce.
[ih-fuhl-juh nt, ih-foo l-] /ɪˈfʌl dʒənt, ɪˈfʊl-/ adjective 1. shining forth brilliantly; radiant. /ɪˈfʌldʒənt/ adjective 1. radiant; brilliant adj. 1738, back-formation from effulgence, or else from Latin effulgentem (nominative effulgens), present participle of effulgere, from ex “out” (see ex-) + fulgere “to shine” (see bleach (v.)).
[verb ih-fyooz; adjective ih-fyoos] /verb ɪˈfyuz; adjective ɪˈfyus/ verb (used with object), effused, effusing. 1. to pour out or forth; shed; disseminate: The town effuses warmth and hospitality. verb (used without object), effused, effusing. 2. to exude; flow out. 3. Physics. (of a gas) to flow through a very small orifice. adjective 4. scattered; profuse. […]
/ɪˌfjuːzɪˈɒmɪtə/ noun 1. (physics) an apparatus for determining rates of effusion of gases, usually used for measuring molecular weights