- millivolt, mV - a unit of potential equal to one thousandth of a volt
--1 is a kind of potential unit
--1 is a part of volt, V - mendelevium, Md, Mv, atomic number 101 - a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium but Mv was formerly the symbol)
--2 is a kind of chemical element, element