noun see: thatch Date: 1892 any of a genus ( Stegosaurus ) of stegosaurs known from the Upper Jurassic rocks especially of Colorado and Wyoming
STEGOSAURUS
Meaning of STEGOSAURUS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012