equal transit rate
etretinate e·tret·i·nate (ĭ-trět’n-āt’) n. A retinoid used in the treatment of severe recalcitrant psoriasis.
messaging, protocol (“Extended TURN”) An ESMTP command (first defined in RFC 1985) with which a client asks the server to deliver queued mail to the client via a new ESMTP connection. ETRN supersedes the SMTP “TURN” command in the same way that ESMTP’s “EHLO” supersedes SMTP’s “HELO”. (1997-11-21)
[es-rohg, -ruh g, et-; Sephardic Hebrew et-rawg; Ashkenazic Hebrew es-rohg] /ˈɛs roʊg, -rəg, ˈɛt-; Sephardic Hebrew ɛtˈrɔg; Ashkenazic Hebrew ɛsˈroʊg/ noun, plural etrogs, etrogim [Sephardic Hebrew et-raw-geem; Ashkenazic Hebrew es-roh-gim] /Sephardic Hebrew ɛt rɔˈgim; Ashkenazic Hebrew ɛsˈroʊ gɪm/ (Show IPA) 1. Judaism. a citron for use with the lulav during the Sukkoth festival service.