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English Lexicon

Anteroposterior

/ˌæn.tə.roʊ.pɒsˈtɪə.ri.ər/
adjectiveCEFR C2 (Proficient)Top #45200 frequency
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Comprehensive Definitions & Senses

2 senses
As adjective
  1. 1

    Relating to or extending from the front to the back of the body or a structure.

    "The physician measured the anteroposterior diameter of the chest cavity during the examination."
  2. 2

    In radiology, denoting an X-ray or projection directed from the front to the back of the subject.

    "An anteroposterior chest radiograph was ordered to assess the heart size."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from New Latin in the 19th century, combining the Latin prefix 'antero-' (from 'anterior', meaning 'fore' or 'before') and 'posterior' (meaning 'subsequent' or 'coming after'). It was coined within anatomical and medical nomenclature to describe directions or axes extending from the front to the back of an organism.

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