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A place at which or the means by which a crossing is made.
(noun)
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A short connecting track by which a train can be transferred from one line to another.
(noun)
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Genetics Crossing over.
(noun)
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Genetics A characteristic resulting from the exchange of genetic material between homologous chromosomes during meiosis.
(noun)
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A registered member of one political party who votes in the primary of the other party.
(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.