1. A moment that feels infinitely long due to intense emotion, anticipation, or suffering; a brief period of time perceived as lasting forever
During the accident, every second felt like an eternal second as he waited for impact.
Durante o acidente, cada segundo parecia um segundo eterno enquanto ele aguardava o impacto.
2. A poetic or literary expression describing the subjective experience of time slowing down in critical moments
In that eternal second, their eyes met and everything changed.
Naquele segundo eterno, seus olhos se encontraram e tudo mudou.