"trembling poplar" meaning in English

{
  "forms": [
    {
      "form": "trembling poplars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "trembling poplar (plural trembling poplars)",
      "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 topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Willows and poplars",
          "orig": "en:Willows and poplars",
          "parents": [
            "Malpighiales order plants",
            "Trees",
            "Plants",
            "Lifeforms",
            "All topics",
            "Life",
            "Fundamental",
            "Nature"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The European aspen (Populus tremula) or American aspen (Populus tremuloides)."
      ],
      "hypernyms": [
        {
          "sense": "Populus tremuloides",
          "word": "popple"
        }
      ],
      "id": "en-trembling_poplar-en-noun-m8uYwnLB",
      "links": [
        [
          "Populus tremula",
          "Populus tremula#Translingual"
        ],
        [
          "American aspen",
          "American aspen"
        ],
        [
          "Populus tremuloides",
          "Populus tremuloides#Translingual"
        ]
      ],
      "synonyms": [
        {
          "sense": "Populus tremuloides",
          "word": "trembling aspen"
        },
        {
          "sense": "Populus tremuloides",
          "word": "American aspen"
        },
        {
          "sense": "Populus tremuloides",
          "word": "quaky tree"
        },
        {
          "sense": "Populus tremuloides",
          "word": "quaky aspen"
        },
        {
          "sense": "Populus tremuloides",
          "word": "mountain aspen"
        },
        {
          "sense": "Populus tremuloides",
          "word": "golden aspen"
        },
        {
          "sense": "Populus tremuloides",
          "word": "quaking aspen"
        },
        {
          "sense": "Populus tremuloides",
          "word": "white poplar"
        },
        {
          "sense": "Populus tremuloides",
          "word": "popple"
        }
      ]
    }
  ],
  "word": "trembling poplar"
}

{
  "forms": [
    {
      "form": "trembling poplars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "trembling poplar (plural trembling poplars)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "sense": "Populus tremuloides",
      "word": "popple"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "Entries missing English vernacular names of taxa",
        "en:Willows and poplars"
      ],
      "glosses": [
        "The European aspen (Populus tremula) or American aspen (Populus tremuloides)."
      ],
      "links": [
        [
          "Populus tremula",
          "Populus tremula#Translingual"
        ],
        [
          "American aspen",
          "American aspen"
        ],
        [
          "Populus tremuloides",
          "Populus tremuloides#Translingual"
        ]
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "Populus tremuloides",
      "word": "trembling aspen"
    },
    {
      "sense": "Populus tremuloides",
      "word": "American aspen"
    },
    {
      "sense": "Populus tremuloides",
      "word": "quaky tree"
    },
    {
      "sense": "Populus tremuloides",
      "word": "quaky aspen"
    },
    {
      "sense": "Populus tremuloides",
      "word": "mountain aspen"
    },
    {
      "sense": "Populus tremuloides",
      "word": "golden aspen"
    },
    {
      "sense": "Populus tremuloides",
      "word": "quaking aspen"
    },
    {
      "sense": "Populus tremuloides",
      "word": "white poplar"
    },
    {
      "sense": "Populus tremuloides",
      "word": "popple"
    }
  ],
  "word": "trembling poplar"
}