The ornamental design for a hermeticterminal, as shown and described.
FIG. 1 is a front perspective view of a hermetic terminal showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a side view thereof from the direction of arrow A in FIG. 2;
FIG. 4 is a side view thereof from the direction of arrow B in FIG. 2; and,
FIG. 5 is a side view thereof from the direction of arrow C in FIG. 2.
The broken line portion of the figure drawings is included for the purpose of illustrating environment and forms no part of the claimed design. It is to be understood that the bottom of hermetic terminal forms no part of the present design.