transcription, транскрипция: [ noun ]
Date: circa 1942
: a unit of mass for expressing masses of atoms, molecules, or nuclear particles equal to 1/12 the mass of a single atom of the most abundant carbon isotope 12 C — called also dalton
ATOMIC MASS UNIT
Meaning of ATOMIC MASS UNIT in English
Merriam-Webster's Collegiate English vocabulary. Энциклопедический словарь английского языка Merriam Webster. 2003