n. [ F. anorthose triclinic feldspar (fr. Gr. 'an priv. + 'orqo`s straight) + -ite. ] (Petrol.) A granular igneous rock composed almost exclusively of a soda-lime feldspar, usually labradorite. [ Webster 1913 Suppl. ]

‖n. [ L., fr. Gr. &unr_;; 'epi` + &unr_; to set right again; &unr_; again + &unr_; to set straight. ] A figure by which a speaker recalls a word or words, in order to substitute something else stronger or more significant; as, Most brave! Brave, did I say? most heroic act! [ 1913 Webster ]

a. [ Ortho- + silicic. ] (Chem.) Designating the form of silicic acid having the normal or highest number of hydroxyl groups. [ 1913 Webster ]