Trisomy 21

Down Syndrome; a genetic disorder in which a person’s cells have 1 too many chromosomes, causing moderate to severe mental handicap and a characteristic appearance

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20000+ Medical & Health Terms for Doctors, students & patients from a medical dictionary. Our experts define difficult medical & health language in easy-to-understand explanations of each and every medical term.

Medical & Health Terms online medical dictionary provides quick & easy access to hard-to-spell and often misspelled medical & health definitions through an extensive alphabetical A-Z listing.