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2006 - WordNet 3.0
By Princeton University
 
1919 - The Winston Simplified Dictionary
By William Dodge Lewis, Edgar Arthur Singer
 
1899 - The american dictionary of the english language.
By Daniel Lyons
 
1874 - Etymological and pronouncing dictionary of the English language
By Stormonth, James, Phelp, P. H.
 
1846 - Medical lexicon: a dictionary of medical science
By Robley Dunglison
 
1871 - The Cabinet Dictionary of the English Language

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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