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Formation of a viable zygote by the union of the male sperm and female ovum; fertilization.
(noun)
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The entity formed by the union of the male sperm and female ovum; an embryo or zygote.
(noun)
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The ability to form or understand mental concepts and abstractions.
(noun)
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Something conceived in the mind; a concept, plan, design, idea, or thought. See Synonyms at idea.
(noun)
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Archaic A beginning; a start.
(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.