Jisho

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Noun
1. pebble
Wikipedia definition
2. GravelGravel  /ˈɡrævəl/ is composed of unconsolidated rock fragments that have a general particle size range and include size classes from granule- to boulder-sized fragments. Gravel is sub-categorized by the Udden-Wentworth scale into granular gravel (>2 to 4 mm or 0.079 to 0.16 in) and pebble gravel (>4 to 64 mm or 0.2 to 2.5 in). One cubic yard of Read “Gravel” on English Wikipedia
Read “礫” on Japanese Wikipedia
Read “Gravel” on DBpedia
Other forms
礫 【こいし】

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