re·tort 2 
(rĭ-tôrt, rētôrt′)
(rĭ-tôrt, rētôrt′)n.
A closed laboratory vessel with an outlet tube, used for distillation, sublimation, or decomposition by heat.
[German Retort, from Medieval Latin retorta, from feminine of Latin retortus, past participle of retorquēre, to bend back; see RETORT1.]