"ephemerid" meaning in English

{
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      "args": {
        "1": "en",
        "2": "mul",
        "3": "Ephemeridae"
      },
      "expansion": "translingual Ephemeridae",
      "name": "der"
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        "2": "NL.",
        "3": "ephemerus"
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      "expansion": "New Latin ephemerus",
      "name": "der"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ἐφήμερος"
      },
      "expansion": "Ancient Greek ἐφήμερος (ephḗmeros)",
      "name": "der"
    }
  ],
  "etymology_text": "From translingual Ephemeridae, from New Latin ephemerus, from Ancient Greek ἐφήμερος (ephḗmeros), the more common form of ἐφημέριος (ephēmérios, “of, for, or during the day, living or lasting but for a day, short-lived, temporary”), from ἐπί (epí, “on”) + ἡμέρα (hēméra, “day”).",
  "forms": [
    {
      "form": "ephemerids",
      "tags": [
        "plural"
      ]
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  "head_templates": [
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      "args": {},
      "expansion": "ephemerid (plural ephemerids)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Mayflies",
          "orig": "en:Mayflies",
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            "Insects",
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      "examples": [
        {
          "ref": "1976 September, Saul Bellow, Humboldt’s Gift, New York, N.Y.: Avon Books, →ISBN, page 51:",
          "text": "I had flown in a helicopter with Javits and Bobby Kennedy. I was skirring around New York like an ephemerid, my jacket lined with jolly psychedelic green.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Any mayfly in the family Ephemeridae."
      ],
      "id": "en-ephemerid-en-noun-~qeFUkT~",
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        [
          "mayfly",
          "mayfly"
        ],
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          "family",
          "family"
        ]
      ],
      "related": [
        {
          "word": "ephemeris"
        }
      ]
    }
  ],
  "word": "ephemerid"
}

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      "args": {
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      "expansion": "Ancient Greek ἐφήμερος (ephḗmeros)",
      "name": "der"
    }
  ],
  "etymology_text": "From translingual Ephemeridae, from New Latin ephemerus, from Ancient Greek ἐφήμερος (ephḗmeros), the more common form of ἐφημέριος (ephēmérios, “of, for, or during the day, living or lasting but for a day, short-lived, temporary”), from ἐπί (epí, “on”) + ἡμέρα (hēméra, “day”).",
  "forms": [
    {
      "form": "ephemerids",
      "tags": [
        "plural"
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      "expansion": "ephemerid (plural ephemerids)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "ephemeris"
    }
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          "text": "I had flown in a helicopter with Javits and Bobby Kennedy. I was skirring around New York like an ephemerid, my jacket lined with jolly psychedelic green.",
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      ],
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  "word": "ephemerid"
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