"head loss" meaning in English

{
  "forms": [
    {
      "form": "head losses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "head loss (countable and uncountable, plural head losses)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1995, Barbara Hauser, Practical Hydraulics Handbook, Second Edition, →ISBN, page 71:",
          "text": "Determination of minor head loss is simple and straightforward, and a standared nomograph in common use is included at the end of the chapter.",
          "type": "quote"
        },
        {
          "ref": "2000, Frank R. Spellman, The Science of Water, →ISBN, page 74:",
          "text": "The total head loss is the sum of the head losses of all of the component pipes.",
          "type": "quote"
        },
        {
          "ref": "2001, American Water Works Association, Butterfly Valves - Torque, Head Loss, and Cavitation, →ISBN, page 55:",
          "text": "A butterfly valve, like any restriction in a pipeline, is a source of head loss.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The pressure lost in a hydraulic system as fluid moves through a pipeline."
      ],
      "id": "en-head_loss-en-noun-JhM6-YLL",
      "links": [
        [
          "pressure",
          "pressure"
        ],
        [
          "hydraulic",
          "hydraulic"
        ],
        [
          "pipeline",
          "pipeline"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "head loss"
}

{
  "forms": [
    {
      "form": "head losses",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "head loss (countable and uncountable, plural head losses)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1995, Barbara Hauser, Practical Hydraulics Handbook, Second Edition, →ISBN, page 71:",
          "text": "Determination of minor head loss is simple and straightforward, and a standared nomograph in common use is included at the end of the chapter.",
          "type": "quote"
        },
        {
          "ref": "2000, Frank R. Spellman, The Science of Water, →ISBN, page 74:",
          "text": "The total head loss is the sum of the head losses of all of the component pipes.",
          "type": "quote"
        },
        {
          "ref": "2001, American Water Works Association, Butterfly Valves - Torque, Head Loss, and Cavitation, →ISBN, page 55:",
          "text": "A butterfly valve, like any restriction in a pipeline, is a source of head loss.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The pressure lost in a hydraulic system as fluid moves through a pipeline."
      ],
      "links": [
        [
          "pressure",
          "pressure"
        ],
        [
          "hydraulic",
          "hydraulic"
        ],
        [
          "pipeline",
          "pipeline"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "head loss"
}