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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Trofoblasto

Trophoblast (TROH-foh-BLAST)
A thin layer of cells that helps a developing embryo attach to the wall of the uterus, protects the embryo, and forms a part of the placenta.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.