intrauterine device

noun

plural intrauterine devices
: a device inserted into and left in the uterus to prevent conception
specifically : a T-shaped device containing either progestin or copper that is inserted into and left in the uterus to prevent conception by blocking ovulation, thickening cervical mucus, or interfering with sperm motility
Women can choose from a variety of contraception options such as pills, patches, implants and intrauterine devices. Sarah Barton
The most effective types of birth control, like an intrauterine device, tend to come at the highest upfront cost … The Canadian Press

called also intrauterine contraceptive device, IUCD, IUD

Examples of intrauterine device in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
These can include aromatase inhibitors to suppress estrogen production, or progestins, which can be taken orally or administered via an intrauterine device (IUD). Tabitha Britt, Flow Space, 29 Oct. 2025 As women increasingly turn to intrauterine devices (IUD) as a means of long-term contraception, Carevix may bring relief to many who say the insertion process of these devices was the worst pain of their lives. Nicole Fallert, USA Today, 29 Oct. 2025 The contraceptives are mostly long-lasting types of birth control, such as intrauterine devices (IUDs), a US congressional aide told CNN. Lauren Kent, CNN Money, 26 Oct. 2025 Other examples of improper billing that Konsker cited involved prenatal and well woman visits, ultrasound treatment and insertion of an intrauterine device. Gretchen Morgenson, NBC news, 19 Sep. 2025 See All Example Sentences for intrauterine device

Word History

First Known Use

1914, in the meaning defined above

Time Traveler
The first known use of intrauterine device was in 1914

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Cite this Entry

“Intrauterine device.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intrauterine%20device. Accessed 4 Nov. 2025.

Kids Definition

intrauterine device

noun
: a small plastic or metal device inserted into the uterus and left there to prevent pregnancy

called also IUD

Medical Definition

intrauterine device

noun
: a device inserted into and left in the uterus to prevent conception
specifically : a T-shaped device containing either progestin or copper that is inserted into and left in the uterus to prevent conception by blocking ovulation, thickening cervical mucus, or interfering with sperm motility

called also intrauterine contraceptive device, IUCD, IUD

More from Merriam-Webster on intrauterine device

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