/hef"neuhr/ , Optics.
a German unit of luminous intensity, equal to 0.92 of a candela.
[ 1895-1900; named after F. von Hefner- Alteneck (1845-1904), German electrical engineer ]
/hef"neuhr/ , Optics.
a German unit of luminous intensity, equal to 0.92 of a candela.
[ 1895-1900; named after F. von Hefner- Alteneck (1845-1904), German electrical engineer ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012