"test-tube" meaning in English

{
  "forms": [
    {
      "form": "test-tubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "test-tube (plural test-tubes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "test tube"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
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      "examples": [
        {
          "bold_text_offsets": [
            [
              270,
              279
            ]
          ],
          "ref": "1995, Martin Amis, [chapter 22], in The Information, London: Flamingo, →ISBN, part 4, page 412:",
          "text": "Again, he was watching Terryterry’s women, the two little girls with their stunts on the slide and the swing, the mum in the kitchen tapping on the glass above the sink, like any mum anywhere, which was probably how she saw herself, no babymamma, no hired box or Quacko test-tube.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of test tube"
      ],
      "id": "en-test-tube-en-noun-I7zlxuJO",
      "links": [
        [
          "test tube",
          "test tube#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "test-tube"
}

{
  "forms": [
    {
      "form": "test-tubes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "test-tube (plural test-tubes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "test tube"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              270,
              279
            ]
          ],
          "ref": "1995, Martin Amis, [chapter 22], in The Information, London: Flamingo, →ISBN, part 4, page 412:",
          "text": "Again, he was watching Terryterry’s women, the two little girls with their stunts on the slide and the swing, the mum in the kitchen tapping on the glass above the sink, like any mum anywhere, which was probably how she saw herself, no babymamma, no hired box or Quacko test-tube.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of test tube"
      ],
      "links": [
        [
          "test tube",
          "test tube#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "test-tube"
}