Definition

A special layer of tissue that lines the uterus and changes during pregnancy, which is removed during childbirth or menstruation.

Example

The decidua provides essential support to the developing fetus during pregnancy.

Conversation

Have you ever heard about the term decidua in relation to pregnancy?

Yeah, I think it refers to the lining of the uterus, right?

Exactly! It's fascinating how it changes during that time.

For sure, and then it gets shed during menstruation, which is interesting too!

Synonyms & Antonyms

Root Explanation

Decidua is derived from the Latin root "deciduus" (meaning falling off or falling down), which is formed from "de-" (meaning down or away) and "cadere" (meaning to fall). The term refers to the layer of the uterine lining that is shed during menstruation or after childbirth, thus relating to the concept of something that falls away.

Memory Tip

Think of the word 'deciduous,' which describes trees that lose their leaves in the fall. This helps you remember that 'decidua' refers to something that falls away, specifically the uterine lining.

Visually Confused Words