HELIOGRAPH Meaning of HELIOGRAPH in English heliograph BrE AmE ˈhiːl i‿ə ɡrɑːf -ɡræf AmE \ -ɡræf▷ heliograph|ed t▷ heliograph|ing ɪŋ▷ heliograph|s s Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012