"equiconcave" meaning in All languages combined

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        "2": "equi-",
        "3": "concave"
      },
      "expansion": "equi- + concave",
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    }
  ],
  "etymology_text": "equi- + concave",
  "forms": [
    {
      "form": "more equiconcave",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most equiconcave",
      "tags": [
        "superlative"
      ]
    }
  ],
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      "args": {},
      "expansion": "equiconcave (comparative more equiconcave, superlative most equiconcave)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with equi-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Optics",
          "orig": "en:Optics",
          "parents": [
            "Physics",
            "Sciences",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
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      "examples": [
        {
          "ref": "1901, William Benjamin Carpenter, William Henry Dallinger, The Microscope and Its Revelations, page 22",
          "text": "In an equiconcave lens the foci are virtual and are crossed over; thus, the lens in fig. 25A is equiconcave, the focus F, instead of being measured from A to the right hand, must be measured to the left hand; consequently, § of the thickness must be subtracted from the focal length in order to determine the distance of F from the surface of the lens.",
          "type": "quotation"
        },
        {
          "ref": "2022 October 4, Samantha Strong, Introduction to Visual Optics, Elsevier Health Sciences, page 202",
          "text": "In an equiconcave lens, the back surface would have a positive radius of curvature.",
          "type": "quotation"
        },
        {
          "ref": "2024, YCT Expert Team, Physics Unsolved Papers, Youth Competition Times, page 215",
          "text": "A thin equiconvex lens of radius of curvature R made of material of refractive index μ₁ is kept coaxially, in contact with an equiconcave lens of the same radius of curvature and refractive index μ₂ (> μ₁).",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Having surfaces with the same concave radius of curvature."
      ],
      "id": "en-equiconcave-en-adj-Sk2DPktx",
      "links": [
        [
          "optics",
          "optics"
        ],
        [
          "concave",
          "concave"
        ],
        [
          "curvature",
          "curvature"
        ]
      ],
      "raw_glosses": [
        "(optics, of a lens) Having surfaces with the same concave radius of curvature."
      ],
      "raw_tags": [
        "of a lens"
      ],
      "related": [
        {
          "word": "equiconvex"
        }
      ],
      "topics": [
        "engineering",
        "natural-sciences",
        "optics",
        "physical-sciences",
        "physics"
      ],
      "translations": [
        {
          "code": "it",
          "lang": "Italian",
          "sense": "Translations",
          "word": "equiconcavo"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "equicóncavo"
        }
      ]
    }
  ],
  "word": "equiconcave"
}

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  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adj",
  "senses": [
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          "name": "Italian entries with incorrect language header",
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          "source": "w"
        }
      ],
      "form_of": [
        {
          "word": "equiconcavo"
        }
      ],
      "glosses": [
        "feminine plural of equiconcavo"
      ],
      "id": "en-equiconcave-it-adj-YNAy3Esy",
      "links": [
        [
          "equiconcavo",
          "equiconcavo#Italian"
        ]
      ],
      "tags": [
        "feminine",
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        "plural"
      ]
    }
  ],
  "word": "equiconcave"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "equi-",
        "3": "concave"
      },
      "expansion": "equi- + concave",
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    }
  ],
  "etymology_text": "equi- + concave",
  "forms": [
    {
      "form": "more equiconcave",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most equiconcave",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "equiconcave (comparative more equiconcave, superlative most equiconcave)",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "equiconvex"
    }
  ],
  "senses": [
    {
      "categories": [
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        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with equi-",
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        "Translation table header lacks gloss",
        "en:Optics"
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      "examples": [
        {
          "ref": "1901, William Benjamin Carpenter, William Henry Dallinger, The Microscope and Its Revelations, page 22",
          "text": "In an equiconcave lens the foci are virtual and are crossed over; thus, the lens in fig. 25A is equiconcave, the focus F, instead of being measured from A to the right hand, must be measured to the left hand; consequently, § of the thickness must be subtracted from the focal length in order to determine the distance of F from the surface of the lens.",
          "type": "quotation"
        },
        {
          "ref": "2022 October 4, Samantha Strong, Introduction to Visual Optics, Elsevier Health Sciences, page 202",
          "text": "In an equiconcave lens, the back surface would have a positive radius of curvature.",
          "type": "quotation"
        },
        {
          "ref": "2024, YCT Expert Team, Physics Unsolved Papers, Youth Competition Times, page 215",
          "text": "A thin equiconvex lens of radius of curvature R made of material of refractive index μ₁ is kept coaxially, in contact with an equiconcave lens of the same radius of curvature and refractive index μ₂ (> μ₁).",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Having surfaces with the same concave radius of curvature."
      ],
      "links": [
        [
          "optics",
          "optics"
        ],
        [
          "concave",
          "concave"
        ],
        [
          "curvature",
          "curvature"
        ]
      ],
      "raw_glosses": [
        "(optics, of a lens) Having surfaces with the same concave radius of curvature."
      ],
      "raw_tags": [
        "of a lens"
      ],
      "topics": [
        "engineering",
        "natural-sciences",
        "optics",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "translations": [
    {
      "code": "it",
      "lang": "Italian",
      "sense": "Translations",
      "word": "equiconcavo"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "equicóncavo"
    }
  ],
  "word": "equiconcave"
}

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  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Italian adjective forms",
        "Italian entries with incorrect language header",
        "Italian non-lemma forms"
      ],
      "form_of": [
        {
          "word": "equiconcavo"
        }
      ],
      "glosses": [
        "feminine plural of equiconcavo"
      ],
      "links": [
        [
          "equiconcavo",
          "equiconcavo#Italian"
        ]
      ],
      "tags": [
        "feminine",
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        "plural"
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  ],
  "word": "equiconcave"
}