Last Updated
：2025/12/07
オルドヴィス紀
Hiragana
おるどゔぃすき / おるどびすき
Proper noun
alt-of
alternative
Japanese Meaning
地質時代の一区分で、古生代に属し、カンブリア紀の次、シルル紀の前にあたる時代。およそ4億8500万年前から4億4300万年前までを指し、多様な海洋生物が繁栄した。
Easy Japanese Meaning
地球のれきしで、とてもふるい時代のなまえで、海にたくさんの生きものがいたころ
Sense（1）
Alternative form of オルドビス紀 (Orudobisu-ki, “Ordovician”)
（ romanization ）
（ hiragana ）
Quizzes for review
Alternative form of オルドビス紀 (Orudobisu-ki, “Ordovician”)
See correct answer
オルドヴィス紀
See correct answer
The Ordovician is one of the geological eras.
See correct answer
オルドヴィス紀は地質学的な時代の一つです。
Japanese - English
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