1. 
   Hadrosauridae
   Hadrosaurids, or duck-billed dinosaurs, were the biggest ornithopods (a type of ornithischian or bird-hipped dinosaurs). They could walk on two or four legs. These plant-eaters lived during the late Cretaceous period . Hadrosaur means 'big or bulky lizard.' Hadrosaurs had a wide, flat, toothless bea...
   Found op http://www.enchantedlearning.com/subjects/dinosaurs/glossary/
   
   
2. 
   Hadrosauridae
   [n] - duck-billed dinosaurs
   Found op http://www.webdictionary.co.uk/definition.php?query=Hadrosauridae
   
   
3. 
   Hadrosauridae
   family Hadrosauridae noun duck-billed dinosaurs; upper Cretaceous
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=Hadrosauridae
   
   
4. 
   hadrosauridae
   1) Family hadrosauridae 2) Hadrosauridae 3) Reptile family
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/hadrosauridae/1
   
   

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