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The product of conception at any point between fertilization and birth, especially the embryo and the extraembryonic membranes.

[Latin, something conceived; see concept.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


any of various products of conception, including the embryo, fetus, and surrounding tissue
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(kənˈsɛp təs)

n., pl. -tus•es.
an embryo or fetus and all its associated membranes.
[1935–40; < New Latin; Latin: the action of conceiving, hence, fetus, embryo <concipere to conceive]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.conceptus - an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval lifeconceptus - an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
animal, animate being, beast, creature, fauna, brute - a living organism characterized by voluntary movement
blastosphere, blastula - early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs
gastrula - double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm
morula - a solid mass of blastomeres that forms when the zygote splits; develops into the blastula
umbilical, umbilical cord - membranous duct connecting the fetus with the placenta
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The problem with making policy on abortion is this: A conceptus does not appear equal to a person.
Conceptus tissues were obtained from uterine flushings on days 12 and 15 of pregnancy, and chorioallantoic tissues were obtained on days 30, 60, 90, and 114 of pregnancy (n = 3-4/d).
Other notable positions include Executive Vice President and Chief Medical Officer of Novasys Medical, Inc., Chief Medical Officer at Boston Scientific, and Vice President of Clinical Research and Medical Affairs at Conceptus. He is also a Director of Aegea Medical, the developer of the Aegea Vapor System for endometrial ablation.
For the conceptus, the risk of death is greater at the beginning of the pregnancy, when the pregnancy itself has not even been recognized or diagnosed (6).
125 women (76.2%) presented with excessive bleeding with retained product of conceptus [Table 6].
Identifiable characteristics of the bovine conceptus during 20 to 60 days as observed by Curran et al.
During the emergency laparotomy, the authors were surprised to encounter the conceptus of 20 weeks angular pregnancy extruded through the left lateral angulation of uterine cavity.
Conceptus IFNs are pregnancy signals for maternal recognition in ruminants (cattle, sheep, and goats); they act on the endometrium to indirectly maintain progesterone synthesis [34].
(acquired by Valeant Pharmaceuticals) and of Conceptus, Inc.