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One that terminates: a terminator of unpopular policies.
(noun)
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The dividing line between the bright and shaded regions of the disk of the moon or an inner planet.
(noun)
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A sequence of nucleotides that signals the end of transcription or translation and the completion of the synthesis of a nucleic acid or protein molecule.
(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.