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单词 pearlstone
释义

Definition of pearlstone in English:

pearlstone

noun ˈpəːlstəʊn
Geology
  • A greyish glassy volcanic rock characterized by concentric spheroidal cracks.

Origin

Early 19th century; earliest use found in William Henry (1774–1836), chemist. From pearl + stone.

Definition of pearlstone in US English:

pearlstone

nounˈpəːlstəʊn
Geology
  • A greyish glassy volcanic rock characterized by concentric spheroidal cracks.

Origin

Early 19th century; earliest use found in William Henry (1774–1836), chemist. From pearl + stone.

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更新时间:2025/6/18 16:39:48