This is the 11836th most frequent Spanish word.
herméticamente
"Completely sealed or airtight."
Here "herméticamente" describes the manner of sealing, emphasizing the airtight and secure sealing.
El contenedor estaba herméticamente sellado para evitar fugas.
The container was hermetically sealed to prevent leaks.
In this case, "herméticamente" is used to convey the tightness of the closure, ensuring no gaps are left.
Cerraron la puerta herméticamente para protegerse del ruido.
They closed the door hermetically to shield themselves from noise.
Here "herméticamente" indicates the secure and airtight closure of the chest to protect its contents.