retarded bone age meaning, retarded bone age definition | English Cobuild dictionary

Collins

retarded

  
  
Someone who is retarded is much less advanced mentally than most people of their age.  
OLD-FASHIONED      adj  
...a special school for mentally retarded children.     
Translation English Cobuild Collins Dictionary  
See also:

retard, retread, retake, reader

Collaborative Dictionary     English Cobuild
adj.
extremely bad
about humans
n.
1 of the Femur bone neck shaft 2 of the femoral artery 3 femoral arterial access
n.
a piece of cloth draped around the head to frame the face, worn by women in the Middle Ages and still a part of the habit of some nuns
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"Collins Cobuild English Dictionary for Advanced Learners 4th edition published in 2003 © HarperCollins Publishers 1987, 1995, 2001, 2003 and Collins A-Z Thesaurus 1st edition first published in 1995 © HarperCollins Publishers 1995"