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Pte

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• Ptea

  PTEA pulmonary thromboendarterectomy

• Pter

  1. variant of ptero- before a vowel: pteranodon. 1. a combining form meaning “one with wings” of the kind specified: hymenopter.

• Pteranodon

  noun 1. a flying reptile of the extinct order Pterosauria, from the Cretaceous Period, having a wingspread of about 25 feet (8 meters). pteranodon (tə-rān’ə-dŏn’) Any of several very large, extinct flying reptiles (pterosaurs) of the genus Pteranodon of the Cretaceous Period. Pteranodon had a long pointed crest on its head, no teeth, a very […]

• Pteridine

  pteridine (těr’ĭ-dēn’) Any of a group of organic compounds having two fused six-member rings each containing two nitrogen atoms and four carbon atoms. One of the rings is a pyrimidine, the other a pyrazine. Pteridines include folic acid and the pigments of butterfly wings.

• Pterido-

  1. a combining form meaning “fern,” used in the formation of compound words: pteridology.

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