"end member" meaning in English

{
  "forms": [
    {
      "form": "end members",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "end member (plural end members)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "endmember"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1970, Arnold Reisman, “Condensed-vapor Phase Binary Diagrams Continued—Incongruently Vaporizing Systems”, in Phase Equilibria: Basic Principles, Applications, Experimental Techniques (Physical Chemistry; 19), New York, N.Y., London: Academic Press, section C (Immiscible Solid–Vapor Systems Exhibiting Congruently Vaporizing Compounds), page 370",
          "text": "Most significant is the observation that the vaporous for the more volatile end member occupies a decreasingly smaller portion of the diagram as the other end member becomes less volatile. Ultimately, when the less volatile end member is essentially involatile, the vaporous of the volatile end member may become microscopically small.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of endmember."
      ],
      "id": "en-end_member-en-noun-TfGkZ0dB",
      "links": [
        [
          "endmember",
          "endmember#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "end member"
}

{
  "forms": [
    {
      "form": "end members",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "end member (plural end members)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "endmember"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1970, Arnold Reisman, “Condensed-vapor Phase Binary Diagrams Continued—Incongruently Vaporizing Systems”, in Phase Equilibria: Basic Principles, Applications, Experimental Techniques (Physical Chemistry; 19), New York, N.Y., London: Academic Press, section C (Immiscible Solid–Vapor Systems Exhibiting Congruently Vaporizing Compounds), page 370",
          "text": "Most significant is the observation that the vaporous for the more volatile end member occupies a decreasingly smaller portion of the diagram as the other end member becomes less volatile. Ultimately, when the less volatile end member is essentially involatile, the vaporous of the volatile end member may become microscopically small.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of endmember."
      ],
      "links": [
        [
          "endmember",
          "endmember#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "end member"
}