Vocab InfoUnclassified Noun白亜紀(はくあき)Cretaceous PeriodDetailsExamples白亜紀Cretaceous PeriodDetailsExamplesDictionary DefinitionNoun1. Cretaceous PeriodAll Forms白亜紀 【はくあき】DetailsAudioPlayFrequencyDictionary Top 20,600ExamplesThere are no sentences available for this contentHold tight, context sentences are coming soon!Self-Study SentencesStudy your own way!Add sentences and study them alongside Bunpro sentences.Try Bunpro