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tumor – n. a mass of tissue found in or on the body that is made up of abnormal cells
dinosaur – n. one of many reptiles that lived on earth millions of years ago
duck-billed – adj. have a projecting jaw, or beak, like a duck
deformed – adj. not having the normal or expected shape especially because of a problem in the way something has developed or grown
hadrosaur – n. a planting-eating dinosaur with jaws flattened like the bill of a duck
dwarf – adj. smaller than normal size
demise – n. an end of life
ameloblastoma – n. a rare, benign tumor appearing in the lower jaw
benign – adj. not causing death or serious injury; without cancer
