Definition of 21 in English :
Define 21 in English
21 meaning in English
Meaning of 21 in English
Pronunciation of 21 in English
21 pronunciation in English
Pronounce 21 in English
21
see synonyms of 21Noun
Adjective
WordNet Lexical Database for English. Princeton University. 2010.
21
see synonyms of 21noun
pathology
a.
a condition caused by the presence of an extra copy of chromosome 21 resulting in learning difficulties and physical differences, such as shorter stature
. Former name (offensive): mongolism. Technical name: trisomy 21b.
(as modifier)
a Down's syndrome baby
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