/freuh nel"/ , Fr. /frdday nel"/ , n.
a unit of frequency, equal to 10 12 cycles per second.
[ 1935-40; named after Augustin Jean Fresnel (1788-1827), French physicist ]
/freuh nel"/ , Fr. /frdday nel"/ , n.
a unit of frequency, equal to 10 12 cycles per second.
[ 1935-40; named after Augustin Jean Fresnel (1788-1827), French physicist ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012