per·​i·​ne·​um ˌper-ə-ˈnē-əm How to pronounce perineum (audio)
plural perinea ˌper-ə-ˈnē-ə How to pronounce perineum (audio)
: an area between the thighs that marks the approximate lower boundary of the pelvis and is occupied by the urinary and genital ducts and rectum
also : the area between the anus and the posterior part of the external genitalia
perineal adjective

Examples of perineum in a Sentence

Recent Examples on the Web Hands-free and easy to use, they’re designed to stimulate both the person wearing it and the person being penetrated, for fuss-free clitoral stimulation and perineum pleasure. Sarah Madaus, SELF, 10 July 2024 Electrical stimulation: This involves the placement of electrodes on the perineum to stimulate the pelvic floor muscles with gentle electrical currents. James Myhre & Dennis Sifris, Md, Verywell Health, 8 July 2024 After an episiotomy is performed, your doctor or midwife will repair the perineum by stitching the wound closed with dissolvable sutures (also called absorbable sutures). Robin Elise Weiss, Phd, Parents, 1 July 2024 Pain-Relief Features: Some postpartum underwear contain special pockets to hold ice packs or warm compresses that can help minimize pain along an incision or around the perineum or lower back area. Laura Lu, Ms, Parents, 21 Mar. 2024 In contrast, a healthcare provider will numb the perineum to make a cut if needed.2 Here's what happens during an episiotomy:2 Incision: There are two types of cuts—a median or mediolateral incision. Korin Miller, Health, 15 Sep. 2023 Healthcare providers commonly use median incisions to make a straight cut in the perineum. Korin Miller, Health, 15 Sep. 2023 Lessens risk of tearing: What's more, Harper and Collins say water causes the perineum to become more relaxed, which can reduce the severity of vaginal tearing. Bekka Besich, Parents, 3 Sep. 2023 My perineum was normal. Madeleine Watts, Harper’s Magazine , 25 May 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'perineum.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


Middle English, from Late Latin perinaion, from Greek, from peri- + inan to empty out; perhaps akin to Sanskrit iṣṇāti he sets in motion

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of perineum was in the 15th century

Dictionary Entries Near perineum

Cite this Entry

“Perineum.” Dictionary, Merriam-Webster, Accessed 24 Jul. 2024.

Medical Definition


variants also perinaeum
plural perinea also perinaea -ˈnē-ə How to pronounce perineum (audio)
: an area of tissue that marks externally the approximate boundary of the pelvic outlet and gives passage to the urogenital ducts and rectum
also : the area between the anus and the posterior part of the external genitalia especially in the female

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