uterus
the enlarged, muscular, expandable portion of the oviduct in which the fertilized ovum implants and develops or rests during prenatal development; the womb of certain mammals.
Compare Meanings
Click for a side-by-side comparison of meanings. Use the word comparison feature to learn the differences between similar and commonly confused words.
Origin of uterus
1Words Nearby uterus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use uterus in a sentence
Most famously, the belief in the “floating uterus” was used to keep women out of the marathon for decades.
Babies leave the uterus without a bacterial colony in their guts.
A rejuvenation period that takes place after an embryo has attached to the uterus sets the growing embryo at its youngest biological age, dubbed “ground zero,” researchers report June 25 in Science Advances.
Embryos appear to reverse their biological clock early in development | Erin Garcia de Jesús | June 25, 2021 | Science NewsThe struggle included some wacky experiments, including loading sperm into a tiny chamber and inserting it in a volunteer’s uterus to “prime” the sperm for action.
An average pregnancy lasts approximately 40 weeks, and viability, the point at which a fetus can survive outside the uterus, generally falls between 24 and 26 weeks.
State abortion policies have become more extreme — without Roe v. Wade, the divide could widen | Daniela Santamarina | June 11, 2021 | Washington Post
Udall had stressed the line of attack so frequently that he was dubbed “Mark uterus,” and it clearly backfired.
It is placed immediately in front, on the pubic bone, the uterus lying nearly on the top of it.
The body of the uterus is formed of a very dense, gray colored, muscular substance, possessing astonishing contractile power.
A thorough and practical treatise on the Malpositions of the uterus and adjacent Organs.
Aims and Aids for Girls and Young Women | George Sumner WeaverEin Fall von Myoma im rudimentaren uterus bicornis unicollis.
Carcinomatous uterus removed eighteen and a half years subsequent to Double Ovariotomy.
British Dictionary definitions for uterus
/ (ˈjuːtərəs) /
anatomy a hollow muscular organ lying within the pelvic cavity of female mammals. It houses the developing fetus and by contractions aids in its expulsion at parturition: Nontechnical name: womb
the corresponding organ in other animals
Origin of uterus
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for uterus
[ yōō′tər-əs ]
The hollow, muscular organ of female mammals in which the embryo develops. In most mammals the uterus is divided into two saclike parts, whereas in primates it is a single structure. It lies between the bladder and rectum and is attached to the vagina and the fallopian tubes. During the menstrual cycle (estrus), the lining of the uterus (endometrium) undergoes changes that permit the implantation of a fertilized egg. Also called womb See more at menstrual cycle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for uterus
[ (yooh-tuh-ruhs) ]
A pear-shaped organ in the female reproductive system where the embryo or fetus develops until birth. The strong muscles of the uterus help push the baby out of the mother's body.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Browse