combining form of L. cærule-us, in the names of various chemical compounds, as ceruleo-sulphuric acid; ceruleo-lactin, etc.
1810. Henry, Elem. Chem. (1840), II. 281. Ceruleo-sulphate of Potassa.
1838. Ceruleo-sulphate [see CERULEIN].
1875. Ure, Dict. Arts, II. 906, s.v. Indigo, A peculiar acid, to which the names of indigo-sulphuric, sulphindigotic, sulphindylic, or cæruleo-sulphuric acid have been applied [Watts (III. 258) calls this Sulphocærulic acid].
1879. Watts, Dict. Chem., 2nd Supp. 276. Ceruleolactin, a hydrated aluminium phosphate … found in botryoïdal and reniform masses.
b. Ceruleo-nasal: humorous for BLUE-NOSE 2.
1859. O. W. Holmes, De Sauty, in Atlantic Monthly, Jan., 96/1. Tell me, O Provincial! speak, Ceruleo-Nasal!
