"substem" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "stem"
      },
      "expansion": "sub- + stem",
      "name": "prefix"
    }
  ],
  "etymology_text": "From sub- + stem.",
  "forms": [
    {
      "form": "substems",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "substem (plural substems)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Botany",
          "orig": "en:Botany",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "79 21",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "65 35",
          "kind": "other",
          "name": "English terms prefixed with sub-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "92 8",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "92 8",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "88 12",
          "kind": "other",
          "langcode": "en",
          "name": "Plant anatomy",
          "orig": "en:Plant anatomy",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "One of several plant stems splitting off from a main stem."
      ],
      "id": "en-substem-en-noun-44utMI2e",
      "links": [
        [
          "botany",
          "botany"
        ],
        [
          "plant",
          "plant"
        ],
        [
          "stem",
          "stem"
        ]
      ],
      "raw_glosses": [
        "(botany) One of several plant stems splitting off from a main stem."
      ],
      "topics": [
        "biology",
        "botany",
        "natural-sciences"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "langcode": "en",
          "name": "Linguistics",
          "orig": "en:Linguistics",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              58,
              66
            ]
          ],
          "ref": "2007, Dirk Geeraerts, H. Cuyckens, The Oxford handbook of cognitive linguistics:",
          "text": "Similarly, Polish (Dancygier 2000) uses three interacting substems to express spatial information […]",
          "type": "quote"
        }
      ],
      "glosses": [
        "Part of a stem."
      ],
      "id": "en-substem-en-noun-ySG4iIjn",
      "links": [
        [
          "linguistics",
          "linguistics"
        ],
        [
          "stem",
          "stem"
        ]
      ],
      "raw_glosses": [
        "(linguistics) Part of a stem."
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "substem"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with sub-",
    "Pages with 1 entry",
    "Pages with entries",
    "en:Plant anatomy"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "stem"
      },
      "expansion": "sub- + stem",
      "name": "prefix"
    }
  ],
  "etymology_text": "From sub- + stem.",
  "forms": [
    {
      "form": "substems",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "substem (plural substems)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Botany"
      ],
      "glosses": [
        "One of several plant stems splitting off from a main stem."
      ],
      "links": [
        [
          "botany",
          "botany"
        ],
        [
          "plant",
          "plant"
        ],
        [
          "stem",
          "stem"
        ]
      ],
      "raw_glosses": [
        "(botany) One of several plant stems splitting off from a main stem."
      ],
      "topics": [
        "biology",
        "botany",
        "natural-sciences"
      ]
    },
    {
      "categories": [
        "English terms with quotations",
        "Quotation templates to be cleaned",
        "en:Linguistics"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              58,
              66
            ]
          ],
          "ref": "2007, Dirk Geeraerts, H. Cuyckens, The Oxford handbook of cognitive linguistics:",
          "text": "Similarly, Polish (Dancygier 2000) uses three interacting substems to express spatial information […]",
          "type": "quote"
        }
      ],
      "glosses": [
        "Part of a stem."
      ],
      "links": [
        [
          "linguistics",
          "linguistics"
        ],
        [
          "stem",
          "stem"
        ]
      ],
      "raw_glosses": [
        "(linguistics) Part of a stem."
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "sciences"
      ]
    }
  ],
  "word": "substem"
}