das Herzklopfen [des Herzklopfens; —] Substantiv [ˈhɛʁʦˌklɔpfn̩]
palpitation [palpitations]◼◼◼noun [UK: ˌpæl.pɪ.ˈteɪʃ.n̩] [US: ˌpæl.pə.ˈteɪʃ.n̩]Have you recently experienced palpitations or felt like your heart was racing? = Haben Sie in letzter Zeit Herzklopfen oder Herzrasen verspürt?
beating of the heart◼◻◻noun [UK: ˈbiːt.ɪŋ əv ðə hɑːt] [US: ˈbiːt.ɪŋ əv ðə ˈhɑːrt]