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单词 phosphatic nodule
释义

Definition of phosphatic nodule in English:

phosphatic nodule

noun
Geology
  • A fossilized nodule consisting chiefly of calcium phosphate of animal origin, occurring in certain marine deposits and formerly used as a source of fertilizer.

Origin

Mid 19th century; earliest use found in The North American Review.

Definition of phosphatic nodule in US English:

phosphatic nodule

noun
Geology
  • A fossilized nodule consisting chiefly of calcium phosphate of animal origin, occurring in certain marine deposits and formerly used as a source of fertilizer.

Origin

Mid 19th century; earliest use found in The North American Review.

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