Jisho

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Noun
1. mass; lump
2. baby boom generation (of 1947-1949); babyboomer (born between 1947-1949)Abbreviation, See also 団塊の世代
Wikipedia definition
3. Nodule (geology)A nodule in petrology or mineralogy is a secondary structure, generally spherical or irregularly rounded in shape. Nodules are typically solid replacement bodies of chert or iron oxides formed during diagenesis of a sedimentary rock. Nodules may be hollow as geodes or vugs or filled with crystals and intricate geometric shrinkage patterns as in septarian nodules.
Read “Nodule (geology)” on English Wikipedia
Read “団塊” on Japanese Wikipedia
Read “Nodule (geology)” on DBpedia

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