"midtest" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mid",
        "3": "test"
      },
      "expansion": "mid- + test",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mid- + test.",
  "forms": [
    {
      "form": "midtests",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "midtest (plural midtests)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English hybridisms",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with mid-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A test administered partway through a course of instruction."
      ],
      "id": "en-midtest-en-noun-Auh8nt0S",
      "links": [
        [
          "test",
          "test"
        ],
        [
          "course",
          "course"
        ],
        [
          "instruction",
          "instruction"
        ]
      ],
      "related": [
        {
          "word": "posttest"
        },
        {
          "word": "pretest"
        }
      ]
    }
  ],
  "word": "midtest"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "mid",
        "3": "test"
      },
      "expansion": "mid- + test",
      "name": "prefix"
    }
  ],
  "etymology_text": "From mid- + test.",
  "forms": [
    {
      "form": "midtests",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "midtest (plural midtests)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "posttest"
    },
    {
      "word": "pretest"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English hybridisms",
        "English lemmas",
        "English nouns",
        "English terms prefixed with mid-",
        "Pages with 1 entry"
      ],
      "glosses": [
        "A test administered partway through a course of instruction."
      ],
      "links": [
        [
          "test",
          "test"
        ],
        [
          "course",
          "course"
        ],
        [
          "instruction",
          "instruction"
        ]
      ]
    }
  ],
  "word": "midtest"
}