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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd
 
1920 - A practical medical dictionary.
By Stedman, Thomas Lathrop
 
1920 - A dictionary of scientific terms.
By Henderson, I. F.; Henderson, W. D.
 
1920 - A dictionary of scientific terms (6th edition)
By J.H. Kenneth
 
1908 - Chambers's Twentieth Century Dictionary of the English Language
By Thomas Davidson

Word of the day

primitive aortae

  • Syn. : inferior vertebral arteries. In embryo, two branches given off from cardiac aorta, which pass through first visceral and unite to form the dorsal aorta.
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