cristae
(geology) A unit of sedimentary rock layers of Middle to Late Permian age located in the Permian Basin (Europe), corresponding to the Lopingian (epoch).
plural of crista
A school day when the students are released early. / A work day when business closes early, or where a worker leaves early.
(mathematics) The condition of being noncommutative.
電子顕微鏡で見ると、ミトコンドリア内膜のひだは密に詰まり、複雑に折り重なって見える。
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