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Webster 1913 Edition


Terminator

Ter′mi-naˊtor

,
Noun.
[L., he who limits or sets bounds.]
1.
One who, or that which, terminates.
2.
(Astron.)
The dividing line between the illuminated and the unilluminated part of the moon.

Webster 1828 Edition


Terminator

TERM'INATOR

,
Noun.
In astronomy, a name sometimes given to the circle of illumination, form its property of terminating the boundaries of light and darkness.