Symbol, Chemistry. 1. ruthenium. abbreviation 1. Russian Federation Chemical symbol 1. ruthenium abbreviation 1. Rugby Union 2. Burundi (international car registration) Ru The symbol for the element ruthenium. Ru The symbol for ruthenium. ruthenium (r-thē’nē-əm) Symbol Ru A rare, silvery-gray metallic element that is hard, brittle, and very resistant to corrosion. It is used to […]
noun 1. mifepristone. RU 486 (är’yōō fôr’ā-tē-sĭks’) n. A drug that chemically terminates a pregnancy. RU 486 (är’y fôr’ā-tē-sĭks’) An oral drug that terminates early pregnancy by interfering with the action of progesterone, thereby preventing the attachment of a fertilized ovum to the uterine wall. RU-486 Roussel-Uclaf-486 (mifepristone)
noun 1. a poncholike outer garment of heavy wool, worn especially in the mountains of Colombia.