the act of conceiving; the state of being conceived.
fertilization; inception of pregnancy.
a notion; idea; concept: She has some odd conceptions about life.
something that is conceived: That machine is the conception of a genius.
origination; beginning: The organization has been beset by problems from its conception.
a design; plan.
a sketch of something not actually existing: an artist's conception of ancient Athens.
the act or power of forming notions, ideas, or concepts.

1300–50; Middle English concepcion < Latin conceptiōn- (stem of conceptiō), equivalent to Latin concept- (see concept) + -iōn- -ion

conceptional, adjective
conceptive, adjective
postconception, adjective
reconception, noun

concept, conception, inception.

3. See idea. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
conception (kənˈsɛpʃən)
1.  something conceived; notion, idea, design, or plan
2.  the description under which someone considers something: her conception of freedom is wrong
3.  the fertilization of an ovum by a sperm in the Fallopian tube followed by implantation in the womb
4.  origin or beginning: from its conception the plan was a failure
5.  the act or power of forming notions; invention
[C13: from Latin conceptiō, from concipere to conceive]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

c.1300, from Fr. conception, from L. conceptionem, noun of action from concipere (see conceive). Originally in the womb sense (also with ref. to Conception Day in the Church calendar); mental sense is late 14c. Meaning "that which is conceived in the mind" is from 1520s;
"general notion" is from 1785.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

conception con·cep·tion (kən-sěp'shən)

  1. The act of forming a general idea or notion.

  2. The formation of a viable zygote by the union of a spermatozoon and an ovum; fertilization.

  3. See concept.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
conception   (kən-sěp'shən)  Pronunciation Key 
The formation of a zygote resulting from the union of a sperm and egg cell; fertilization.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

conception definition

Fertilization; the union of the sperm and ovum to form a zygote. (See reproductive systems.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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