water off a duck's back

aloe juvenna delight the cockles of the heart direct-acting overflow valve drasticus forg genus Arthropteris God helps them who help themselves great-sanhedrin high energy heavy ion nuclear reactor hydro clipper mower import duty memo mayson's hygrometer Nordegg(Brazeau) pratoletin primary matte shortening of uterosacral ligament Soman subprotoplast syndrome of wind-heat invading nose valvular pneumothorax