Search mu mu /myo̅o̅, mo̅o̅/ , 1. μ, Μ, the twelfth letter of the Greek alphabet. 2. μ. Symbol for micron. Tweet Telegram VK Random Words alcoholic-nutritional cerebellar degeneration atrium sphenoidal fissure NICU congenital subluxation of the hip vapor pressure depression clonus (C) primary processes gliosarcoma retinae