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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd
 
2010 - New Age Dictionary Database
By Oddity Software
 
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.
 
1846 - Medical lexicon: a dictionary of medical science
By Robley Dunglison
 
1919 - The concise Oxford dictionary of current English
By Sir Augustus Henry

Word of the day

horseshoe placenta

  • An exaggerated p. reniformis curved in the form of a horseshoe. a peculiar form p. in some cases of twin pregnancy. formation in which the two placentae twin gestation are united by a strip of placental tissue.
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