‖n. [ NL. from Gr. &unr_; chyle + &unr_; urine. ] (Med.) A morbid condition in which the urine contains chyle or fatty matter, giving it a milky appearance. [ 1913 Webster ]

a. [ From L. Silures, a people who anciently inhabited a part of England and Wales. ] (Geol.) Of or pertaining to the country of the ancient Silures; -- a term applied to the earliest of the Paleozoic eras, and also to the strata of the era, because most plainly developed in that country. [ 1913 Webster ]

☞ The Silurian formation, so named by Murchison, is divided into the Upper Silurian and Lower Silurian. The lower part of the Lower Silurian, with some underlying beds, is now separated under the name Cambrian, first given by Sedwick. Recently the term Ordovician has been proposed for the Lower Silurian, leawing the original word to apply only to the Upper Silurian. [ 1913 Webster ]

n. The Silurian age. [ 1913 Webster ]

a. [ L. tellus, -uris, the earth. ] Of or pertaining to the earth. De Quincey. [ 1913 Webster ]

n. 1. A dweller on the earth. De Quincey. [ 1913 Webster ]

2. An instrument for showing the operation of the causes which produce the succession of day and night, and the changes of the seasons. [ Written also tellurion. ] [ 1913 Webster ]