aqueduct vs artery

aqueduct

noun
  • A structure conveying fluid, such as the cerebral aqueduct or vestibular aqueduct. 

  • An artificial channel that is constructed to convey water from one location to another. 

  • A structure carrying water over a river or depression, especially in regards to ancient aqueducts. 

artery

noun
  • Any of the muscular- and elastic-walled blood vessels forming part of the circulation system by which blood is conveyed away from the heart regardless of its oxygenation status; see pulmonary artery. 

  • Hyponyms: alloartery, arteriole, endartery, microartery; see also Thesaurus:artery 

  • A major transit corridor in a system of roads, rivers, or railway lines. 

How often have the words aqueduct and artery occurred in a corpus of books? (source: Google Ngram Viewer )