— helioscopic /hee'lee euh skop"ik/ , adj. — helioscopy /hee'lee os"keuh pee/ , n.
/hee"lee euh skohp'/ , n.
a telescope for viewing the sun, adapted to protect the eye of the viewer from the sun's glare.
[ 1665-75; HELIO- + -SCOPE ]
— helioscopic /hee'lee euh skop"ik/ , adj. — helioscopy /hee'lee os"keuh pee/ , n.
/hee"lee euh skohp'/ , n.
a telescope for viewing the sun, adapted to protect the eye of the viewer from the sun's glare.
[ 1665-75; HELIO- + -SCOPE ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012