[ kuh n-sep-tuh s ]
/ kənˈsɛp təs /

noun, plural con·cep·tus·es.

the embryo and associated membranes of humans and other highly developed animals.

Origin of conceptus

1935–40; < New Latin; Latin: the action of conceiving, hence, something that is conceived, fetus, embryo, equivalent to concep- (variant stem of concipere to conceive; see concept) + -tus suffix of v. action Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for conceptus

Medicine definitions for conceptus

[ kən-sĕptəs ]

n. pl. con•cep•tus•es

The products of conception; that is, the embryo, chorionic sac, placenta, and fetal membranes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.