‖ toxicosisPath.|tɒksɪˈkəʊsɪs| Pl. -oses|-ˈəʊsiːz|. [mod.L., f. as prec. + -osis.] A disease or morbid condition produced by the action of a poison. 1857Dunglison Med.Lex., Toxicoses, a family of diseases..caused by the reception of poisons into the system.