モササウルスモササウルスFreq.FrequencyTop 100,000Meanings1nounmosasaurusExtinct genus of large marine reptiles from the Late Cretaceous period.モササウルスは白はく亜あ紀き後こう期きの海うみに生せい息そくしていた巨きょ大だいな爬は虫ちゅう類るいです。Mosasaurus was a giant reptile that lived in the seas of the Late Cretaceous period.
