an assemblage of rocks, rich in silica and magnesium, that constitutes the lower layer of the earth’s crust and is found beneath the ocean floors and the sial of continents.
the silicon-rich and magnesium-rich rocks of the earth’s oceanic crust, the most abundant individual rock being basalt
the earth’s continental lower crust, probably comprised of gabbro rather than basalt
noun, Chemistry. 1. a colorless crystalline selective herbicide, C 7 H 1 2 ClN 5 , used for season-long weed control in corn and other crops.
noun 1. an E African word for lion
noun 1. former name of Ulyanovsk. noun 1. the former name (until 1924) of Ulyanovsk
- SIM card
noun 1. Subscriber Identity/Identification Module: a removable card inside a cell phone that stores data unique to the user, as an identification number, passwords, phone numbers, and messages.