plural pelvises
ˈpel-və-səz 
or pelves
ˈpel-ˌvēz
or pelves
ˈpel-ˌvēz
1
: a basin-shaped structure in the skeleton of many vertebrates that is formed by the pelvic girdle and adjoining bones of the spine
During puberty, the shape of the pelvis begins to take on distinctly male or female features …—
Christopher Joyce and Eric Stover
Christopher Joyce and Eric StoverDysfunction can occur with uneven distribution of weight on the pelvis, a common and usually benign condition that can be exacerbated by running.—Carol Potera
Carol Potera
also
: pelvic cavity
Endometriosis is the presence of functioning endometrial tissue outside the endometrial cavity, but usually confined to the pelvis … —Daniel W. Cramer et al.
Daniel W. Cramer et al. 2
Examples of pelvis in a Sentence
Recent Examples on the Web
At the end of your exhale, without inhaling, tilt your pelvis and tuck your tailbone to flatten your lower back against the floor.
—Dana Santas, CNN, 23 Mar. 2025
Many people hear this cue and find an extreme shape, flattening their spines and scooping their pelvis under.
—Dana Solomon, Outside Online, 16 Mar. 2025
Keep your core engaged, and extend and lift your right arm and left leg back simultaneously, ensuring your pelvis doesn't drop on either side.
—Jakob Roze, Health, 26 Feb. 2025
But his injuries included a traumatic brain injury, compound fractures to both his legs and injuries to his arms, shoulder, pelvis and face.
—Nick Ferraro, Twin Cities, 8 Feb. 2025
See All Example Sentences for pelvis
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Dana Santas, CNN, 23 Mar. 2025
Many people hear this cue and find an extreme shape, flattening their spines and scooping their pelvis under.
—Dana Solomon, Outside Online, 16 Mar. 2025
Keep your core engaged, and extend and lift your right arm and left leg back simultaneously, ensuring your pelvis doesn't drop on either side.
—Jakob Roze, Health, 26 Feb. 2025
But his injuries included a traumatic brain injury, compound fractures to both his legs and injuries to his arms, shoulder, pelvis and face.
—Nick Ferraro, Twin Cities, 8 Feb. 2025
See All Example Sentences for pelvis
Cite this Entry
“Pelvis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pelvis. Accessed 28 Mar. 2025.
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Medical Definition
pelvis
noun
pel·vis
ˈpel-vəs
1
: a basin-shaped structure in the skeleton of many vertebrates that is formed by the pelvic girdle and adjoining bones of the spine and that in humans is bounded laterally by the two hip bones, anteriorly by the pubis, and posteriorly by the sacrum and coccyx see also false pelvis, true pelvis
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