English

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Etymology

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From pteroyl +‎ aspartic.

Noun

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pteroylaspartic (uncountable)

  1. (chemistry) Designating an antimetabolite acid used in treating cancers.
    • 2011, Siddhartha Mukherjee, The Emperor of all Maladies, Fourth Estate, page 33:
      On September 6, 1947, Farber began to inject Sandler with pteroylaspartic acid or PAA, the first of Lederle's antifolates.