同義語 劃期

Japanese WordNet / Princeton WordNet

1. 劃期noun

   紀の下位区分で、それ自体は期に分割される、地質年代の単位

   a unit of geological time that is a subdivision of a period and is itself divided into ages

   Synonym(s): 世, 世紀, 時代, epoch

   Holonym(s) (Part): 時代, 時期, 期間, geological period, period

   Has Instance: 中新世, 始新世, 完新世, 暁新世, 更新世, 氷河期, 漸新世, 鮮新世, eocene, eocene epoch, glacial epoch, holocene, holocene epoch, miocene, miocene epoch, oligocene, oligocene epoch, paleocene, paleocene epoch, pleistocene, pleistocene epoch, pliocene, pliocene epoch, recent, recent epoch

   Hypernym(s): 地質時代, geologic time, geological time