/yooh'nil pen"tee euhm/ , n.
Chem., Physics. provisional name for the transuranic element with atomic number 105. Symbol: Unp Also called element 105, hahnium .
[ 1975-80; un ( us ) ONE + nil nothing + Gk pént ( e ) FIVE + NL -ium -IUM ]
/yooh'nil pen"tee euhm/ , n.
Chem., Physics. provisional name for the transuranic element with atomic number 105. Symbol: Unp Also called element 105, hahnium .
[ 1975-80; un ( us ) ONE + nil nothing + Gk pént ( e ) FIVE + NL -ium -IUM ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012