"obsd." meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "observed"
        }
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          "name": "English entries with incorrect language header",
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      "examples": [
        {
          "ref": "1973, Indian Science Abstracts, volume 9, page 121:",
          "text": "Gestational oestrus was obsd. in 5.68% […]",
          "type": "quote"
        }
      ],
      "glosses": [
        "Abbreviation of observed."
      ],
      "id": "en-obsd.-en-verb-XX98VX1f",
      "links": [
        [
          "observed",
          "observed#English"
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      "tags": [
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  "word": "obsd."
}

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        "2": "verb form"
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      "expansion": "obsd.",
      "name": "head"
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  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "observed"
        }
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        "English non-lemma forms",
        "English terms spelled with .",
        "English terms with quotations",
        "English verb forms",
        "Pages with 1 entry",
        "Pages with entries",
        "Quotation templates to be cleaned"
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      "examples": [
        {
          "ref": "1973, Indian Science Abstracts, volume 9, page 121:",
          "text": "Gestational oestrus was obsd. in 5.68% […]",
          "type": "quote"
        }
      ],
      "glosses": [
        "Abbreviation of observed."
      ],
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          "observed",
          "observed#English"
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  "word": "obsd."
}