phosphorous - WordReference.com Dictionary of English

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- - phosphide
  - phosphine
  - phospho-
  - phospholipid
  - phosphor
  - phosphor bronze
  - phosphorescence
  - phosphoric
  - phosphoric acid
  - phosphorite
  - phosphorous
  - phosphorus
  - phosphorylate
  - phossy jaw
  - phot
  - photic
  - photino
  - photo
  - photo CD
  - photo finish
  - photo opportunity
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phosphorous

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Concise Oxford English Dictionary © 2008 Oxford University Press:
phosphorous /ˈfɒsf(ə)rəs/

▶adjective

1 relating to or containing phosphorus.
■ Chemistry of phosphorus with a valency of three.

2 phosphorescent.

usage: The correct spelling for the noun denoting the chemical element is phosphorus, while the adjective is spelled phosphorous.

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