stereochemistry (stÄr'Ä-Å-kÄm'Ä­-strÄ) The branch of chemistry that deals with the spatial arrangements of atoms in molecules and with the chemical and physical effects of these arrangements.
ECU. Short for Electronic Control Unit, the ECU is a name given to a device that controls one or more electrical systems in a vehicle. It operates much like the BIOS does in a computer.
1. NICU-an intensive care unit designed with special equipment to care for premature or seriously ill newborn. neonatal intensive care unit. ICU, intensive care unit-a hospital unit staffed and equipped to provide intensive care.