{
  "aortic arch":{
    "antonyms":[],
    "definitions":{
      ": arch of the aorta":[],
      ": one of the arterial branches in vertebrate embryos that exist in a series of pairs with one on each side of the embryo, connect the ventral arterial system lying anterior to the heart to the dorsal arterial system above the digestive tract, and persist in adult fishes but are reduced or much modified in the adult of higher forms":[]
    },
    "examples":[
      "Recent Examples on the Web",
      "But because Caleb had a rare defect known as an interrupted aortic arch , oxygenated blood flow to his body was being choked off as the duct began to seal itself. \u2014 Pam Kragen, San Diego Union-Tribune , 22 Sep. 2020",
      "The team suspects that the animal\u2019s stretchy aortic arch , part of the main artery entering the heart, continues to slowly contract between heartbeats, maintaining blood flow to the animal\u2019s body. \u2014 Jason Daley, Smithsonian , 19 Nov. 2019",
      "In 2012, a 76-year-old Connecticut doctor had surgery to repair a life-threatening bulge in his aortic arch \u2014the hulking bend that hooks the massive artery around the heart, routing oxygenated blood both upward and downward. \u2014 Beth Mole, Ars Technica , 20 Mar. 2018",
      "The study is based off the case of a 76-year-old man who underwent surgery for his aortic arch , a part of the main artery around the heart. \u2014 Josh Magness, miamiherald , 21 Mar. 2018"
    ],
    "first_known_use":{
      "1802, in the meaning defined at sense 1":""
    },
    "history_and_etymology":{},
    "pronounciation":[],
    "synonym_discussion":"",
    "synonyms":[],
    "time_of_retrieval":"20220708-113252",
    "type":[
      "noun"
    ]
  },
  "aorta":{
    "type":[
      "adjective",
      "noun"
    ],
    "definitions":{
      ": the great arterial trunk that carries blood from the heart to be distributed by branch arteries through the body \u2014 see heart illustration":[]
    },
    "pronounciation":[
      "\u0101-\u02c8\u022frt-\u0259",
      "\u0101-\u02c8\u022fr-t\u0259"
    ],
    "synonyms":[],
    "antonyms":[],
    "synonym_discussion":"",
    "examples":[
      "Recent Examples on the Web",
      "Per the Mayo Clinic, an aortic dissection occurs when the inner layer of the body\u2019s main artery tears, allowing blood to rush through and split the middle and inner layers of the aorta . \u2014 Jon Blistein, Rolling Stone , 27 June 2022",
      "Performances were a production\u2019s aorta , its life source, its raison d\u2019etre. \u2014 Lovia Gyarkye, The Hollywood Reporter , 22 May 2022",
      "The aorta problem during surgery could also have been a factor, as could the reduction in anti-immune medication, along with the CMV, Mohiuddin said. \u2014 Karen Weintraub, USA TODAY , 5 May 2022",
      "The pilot who became unconscious during a flight in Florida last week, leading to a miraculous landing from a passenger with no flying experience, has been released from the hospital after undergoing surgery for a tear in his aorta , Today reported. \u2014 Maria Pasquini, PEOPLE.com , 17 May 2022",
      "In that form, blood flow is partially blocked from the left ventricle, the heart\u2019s main pumping chamber, to the aorta . \u2014 Jared S. Hopkins, WSJ , 29 Apr. 2022",
      "His aorta , the body\u2019s main artery, started to come apart during the surgery, which could have been another contributing factor. \u2014 Amy Dockser Marcus And Joseph De Avila, WSJ , 6 May 2022",
      "The blood vessels in your body go from very large (the aorta , which takes the blood directly from the heart, is the largest) all the way down to the capillaries, the very smallest. \u2014 Dr. Keith Roach, oregonlive , 8 Apr. 2022",
      "In the ensuing melee, one of the assailants plunged a knife into Tyshon\u2019s chest, severing his aorta . \u2014 Washington Post , 24 Mar. 2022"
    ],
    "history_and_etymology":{
      "borrowed from Medieval Latin, borrowed from Greek aort\u1e17 \"aorta, bronchial tubes (in plural aorta\u00ed ), knapsack,\" nominal derivative from the stem of ae\u00edrein \"to join, attach, harness,\" of uncertain origin":""
    },
    "first_known_use":{
      "1543, in the meaning defined above":""
    },
    "time_of_retrieval":"20220708-190511"
  },
  "aort-":{
    "type":[
      "combining form"
    ],
    "definitions":{
      ": aorta":[
        "aort itis",
        "aorto lith"
      ]
    },
    "pronounciation":[],
    "synonyms":[],
    "antonyms":[],
    "synonym_discussion":"",
    "examples":[],
    "history_and_etymology":{
      "New Latin, from aorta":""
    },
    "first_known_use":{},
    "time_of_retrieval":"20220708-201813"
  },
  "aorist":{
    "type":[
      "adjective",
      "adverb",
      "noun"
    ],
    "definitions":{
      ": an inflectional form of a verb typically denoting simple occurrence of an action without reference to its completeness, duration, or repetition":[]
    },
    "pronounciation":[
      "\u02c8\u0101-\u0259-r\u0259st"
    ],
    "synonyms":[],
    "antonyms":[],
    "synonym_discussion":"",
    "examples":[],
    "history_and_etymology":{
      "Late Latin & Greek; Late Latin aoristos , from Greek, from aoristos undefined, from a + horistos definable, from horizein to define \u2014 more at horizon":""
    },
    "first_known_use":{
      "1566, in the meaning defined above":""
    },
    "time_of_retrieval":"20220708-211407"
  },
  "aorto-":{
    "type":[],
    "definitions":{
      "\u2014 see aort-":[]
    },
    "pronounciation":[],
    "synonyms":[],
    "antonyms":[],
    "synonym_discussion":"",
    "examples":[],
    "history_and_etymology":{},
    "first_known_use":{},
    "time_of_retrieval":"20220708-235516"
  },
  "aortography":{
    "type":[
      "adjective",
      "noun"
    ],
    "definitions":{
      ": arteriography of the aorta":[]
    },
    "pronounciation":[
      "\u02cc\u0101-\u02cc\u022fr-\u02c8t\u00e4g-r\u0259-f\u0113",
      "\u02cc\u0101-\u02cc\u022fr-\u02c8t\u00e4-gr\u0259-f\u0113"
    ],
    "synonyms":[],
    "antonyms":[],
    "synonym_discussion":"",
    "examples":[],
    "history_and_etymology":{
      "aorta + -o- + -graphy":""
    },
    "first_known_use":{
      "circa 1935, in the meaning defined above":""
    },
    "time_of_retrieval":"20220709-001718"
  },
  "Aoraki":{
    "type":[
      "geographical name"
    ],
    "definitions":{
      "\u2014 see cook, mount":[]
    },
    "pronounciation":[],
    "synonyms":[],
    "antonyms":[],
    "synonym_discussion":"",
    "examples":[],
    "history_and_etymology":{},
    "first_known_use":{},
    "time_of_retrieval":"20220709-035628"
  },
  "Aosta":{
    "type":[
      "geographical name"
    ],
    "definitions":{
      "commune in northwestern Italy in the region of Piedmont at the junction of the Great and Little Saint Bernard passes; capital of Valle d'Aosta population 34,644":[],
      "\u2014 see valle d'aosta":[]
    },
    "pronounciation":[
      "\u00e4-\u02c8\u022f-st\u00e4"
    ],
    "synonyms":[],
    "antonyms":[],
    "synonym_discussion":"",
    "examples":[],
    "history_and_etymology":{},
    "first_known_use":{},
    "time_of_retrieval":"20220709-180757"
  }
}