From English - German Ding/FreeDict dictionary ver. 1.9-fd1: Hertzsprung-Russell diagram /hˈɜːtsspɹʌŋ ɹˈʌsəl dˈaɪəɡɹˌam/ (HRD /ˌeɪtʃˌɑːdˈiː/) Hertzsprung-Russell-Diagramm <neut> [phys.] [astron.] HRD, /ˌeɪtʃˌɑːdˈiː/
Hertzsprung-Russell diagram /hˈɜːtsspɹʌŋ ɹˈʌsəl dˈaɪəɡɹˌam/ (HRD /ˌeɪtʃˌɑːdˈiː/) Hertzsprung-Russell-Diagramm <neut> [phys.] [astron.] HRD, /ˌeɪtʃˌɑːdˈiː/
