"ullage motor" meaning in English

{
  "forms": [
    {
      "form": "ullage motors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ullage motor (plural ullage motors)",
      "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"
        },
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          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronautics",
          "orig": "en:Astronautics",
          "parents": [
            "Applied sciences",
            "Space",
            "Sciences",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rocketry",
          "orig": "en:Rocketry",
          "parents": [
            "Astronautics",
            "Applied sciences",
            "Space",
            "Sciences",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A small, auxiliary rocket engine or motor onboard a spacecraft that provides enough acceleration to settle propellant in a tank."
      ],
      "id": "en-ullage_motor-en-noun-kwQAFvmJ",
      "links": [
        [
          "astronautics",
          "astronautics"
        ],
        [
          "small",
          "small"
        ],
        [
          "auxiliary",
          "auxiliary"
        ],
        [
          "rocket",
          "rocket"
        ],
        [
          "engine",
          "engine"
        ],
        [
          "motor",
          "motor"
        ],
        [
          "spacecraft",
          "spacecraft"
        ],
        [
          "acceleration",
          "acceleration"
        ],
        [
          "settle",
          "settle"
        ],
        [
          "propellant",
          "propellant"
        ],
        [
          "tank",
          "tank"
        ]
      ],
      "raw_glosses": [
        "(astronautics) A small, auxiliary rocket engine or motor onboard a spacecraft that provides enough acceleration to settle propellant in a tank."
      ],
      "related": [
        {
          "word": "ullage"
        },
        {
          "word": "ullage burn"
        },
        {
          "word": "ullage gas"
        },
        {
          "word": "ullage gas thruster"
        },
        {
          "word": "ullage space"
        }
      ],
      "topics": [
        "aerospace",
        "astronautics",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "ullage motor"
      ]
    }
  ],
  "word": "ullage motor"
}

{
  "forms": [
    {
      "form": "ullage motors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ullage motor (plural ullage motors)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "ullage"
    },
    {
      "word": "ullage burn"
    },
    {
      "word": "ullage gas"
    },
    {
      "word": "ullage gas thruster"
    },
    {
      "word": "ullage space"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Astronautics",
        "en:Rocketry"
      ],
      "glosses": [
        "A small, auxiliary rocket engine or motor onboard a spacecraft that provides enough acceleration to settle propellant in a tank."
      ],
      "links": [
        [
          "astronautics",
          "astronautics"
        ],
        [
          "small",
          "small"
        ],
        [
          "auxiliary",
          "auxiliary"
        ],
        [
          "rocket",
          "rocket"
        ],
        [
          "engine",
          "engine"
        ],
        [
          "motor",
          "motor"
        ],
        [
          "spacecraft",
          "spacecraft"
        ],
        [
          "acceleration",
          "acceleration"
        ],
        [
          "settle",
          "settle"
        ],
        [
          "propellant",
          "propellant"
        ],
        [
          "tank",
          "tank"
        ]
      ],
      "raw_glosses": [
        "(astronautics) A small, auxiliary rocket engine or motor onboard a spacecraft that provides enough acceleration to settle propellant in a tank."
      ],
      "topics": [
        "aerospace",
        "astronautics",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ],
      "wikipedia": [
        "ullage motor"
      ]
    }
  ],
  "word": "ullage motor"
}