Definition of hadrosaurid
plural hadrosaurids
: hadrosaur, duck-billed dinosaur
- Like ceratopsians, they too had closely packed chewing teeth, but by the time hadrosaurids evolved, the dentition consisted of relatively small teeth that were organized into a complex battery, all the better for grinding up vegetation.
- —David B. Weishampel, Natural History, June 1995
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hadrosaurid
adjective-
- … members of the hadrosaurid family apparently nurtured their young.
- —Richard Monastersky, Science News, 22 Oct. 1988
