Meaning & use
epithelium
A thin tissue that lines the surfaces of organs, glands, and body cavities.
See it in a sentence
The epithelium lining the lungs helps trap dust and other particles before they cause harm.
Researchers studied how the intestinal epithelium regenerates after damage from infection.
A note on using this word
Epithelium is a general biological term covering many types of lining tissue, including skin's outer epidermis.
Words with a similar meaning
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