Definition of "intrauterine device" [in•tra•u•ter•ine de•vice]

• A birth control device, such as a plastic or metallic loop, ring, or spiral, that is inserted into the uterus to prevent implantation. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.