"D-" meaning in Translingual

{
  "antonyms": [
    {
      "word": "L-"
    }
  ],
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "d-glyceraldehyde"
      },
      "expansion": "d-glyceraldehyde",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "(+)-glyceraldehyde"
      },
      "expansion": "(+)-glyceraldehyde",
      "name": "m"
    }
  ],
  "etymology_text": "From d-glyceraldehyde, old name of (+)-glyceraldehyde.",
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "prefix"
      },
      "expansion": "D-",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "Chemistry",
          "orig": "mul:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English links with manual fragments",
          "parents": [
            "Links with manual fragments",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "64 36",
          "kind": "other",
          "name": "Translingual entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "coordinate_terms": [
        {
          "word": "DL-"
        }
      ],
      "glosses": [
        "one of two mirror-image forms of an isomer (enantiomer) derived from (R)-glyceraldehyde. Written in small caps."
      ],
      "id": "en-D--mul-prefix-d21RpOJc",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "isomer",
          "isomer"
        ],
        [
          "enantiomer",
          "enantiomer"
        ],
        [
          "glyceraldehyde",
          "glyceraldehyde"
        ]
      ],
      "raw_glosses": [
        "(chemistry) one of two mirror-image forms of an isomer (enantiomer) derived from (R)-glyceraldehyde. Written in small caps."
      ],
      "related": [
        {
          "word": "d-"
        },
        {
          "word": "l-"
        },
        {
          "word": "R-"
        },
        {
          "word": "S-"
        },
        {
          "alt": "RS",
          "word": "-"
        }
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "D-"
}

{
  "etymology_number": 2,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "deca-"
      },
      "expansion": "deca-",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "deka-"
      },
      "expansion": "deka-",
      "name": "m"
    },
    {
      "args": {
        "1": "mul",
        "2": "fr",
        "3": "-"
      },
      "expansion": "French",
      "name": "der"
    },
    {
      "args": {
        "1": "mul",
        "2": "la",
        "3": "decas"
      },
      "expansion": "Latin decas",
      "name": "der"
    },
    {
      "args": {
        "1": "mul",
        "2": "grc",
        "3": "δέκα",
        "4": "",
        "5": "10"
      },
      "expansion": "Ancient Greek δέκα (déka, “10”)",
      "name": "der"
    }
  ],
  "etymology_text": "From deca-/deka-. From French SI metric system origins. From Latin decas, from Ancient Greek δέκα (déka, “10”).",
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "prefix"
      },
      "expansion": "D-",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "prefix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "deca-",
          "word": "da-"
        }
      ],
      "categories": [
        {
          "kind": "topical",
          "langcode": "mul",
          "name": "Metrology",
          "orig": "mul:Metrology",
          "parents": [
            "Applied sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "Coordinate term: d- (deci-)"
        }
      ],
      "glosses": [
        "Nonstandard form of da- (“deca-”)."
      ],
      "id": "en-D--mul-prefix-5gXqy6NJ",
      "links": [
        [
          "metrology",
          "metrology"
        ],
        [
          "da-",
          "da-#Translingual"
        ]
      ],
      "raw_glosses": [
        "(metrology) Nonstandard form of da- (“deca-”)."
      ],
      "synonyms": [
        {
          "word": "Da-"
        },
        {
          "word": "DA-"
        },
        {
          "word": "dk-"
        },
        {
          "word": "Dk-"
        },
        {
          "word": "DK-"
        }
      ],
      "tags": [
        "alt-of",
        "morpheme",
        "nonstandard"
      ],
      "topics": [
        "metrology"
      ]
    }
  ],
  "word": "D-"
}

{
  "antonyms": [
    {
      "word": "L-"
    }
  ],
  "categories": [
    "English links with manual fragments",
    "Translingual entries with incorrect language header",
    "Translingual lemmas",
    "Translingual prefixes",
    "Translingual terms derived from Ancient Greek",
    "Translingual terms derived from French",
    "Translingual terms derived from Latin"
  ],
  "coordinate_terms": [
    {
      "word": "DL-"
    }
  ],
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "d-glyceraldehyde"
      },
      "expansion": "d-glyceraldehyde",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "(+)-glyceraldehyde"
      },
      "expansion": "(+)-glyceraldehyde",
      "name": "m"
    }
  ],
  "etymology_text": "From d-glyceraldehyde, old name of (+)-glyceraldehyde.",
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "prefix"
      },
      "expansion": "D-",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "prefix",
  "related": [
    {
      "word": "d-"
    },
    {
      "word": "l-"
    },
    {
      "word": "R-"
    },
    {
      "word": "S-"
    },
    {
      "alt": "RS",
      "word": "-"
    }
  ],
  "senses": [
    {
      "categories": [
        "mul:Chemistry"
      ],
      "glosses": [
        "one of two mirror-image forms of an isomer (enantiomer) derived from (R)-glyceraldehyde. Written in small caps."
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "isomer",
          "isomer"
        ],
        [
          "enantiomer",
          "enantiomer"
        ],
        [
          "glyceraldehyde",
          "glyceraldehyde"
        ]
      ],
      "raw_glosses": [
        "(chemistry) one of two mirror-image forms of an isomer (enantiomer) derived from (R)-glyceraldehyde. Written in small caps."
      ],
      "tags": [
        "morpheme"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "D-"
}

{
  "categories": [
    "Translingual entries with incorrect language header",
    "Translingual lemmas",
    "Translingual prefixes",
    "Translingual terms derived from Ancient Greek",
    "Translingual terms derived from French",
    "Translingual terms derived from Latin"
  ],
  "etymology_number": 2,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "deca-"
      },
      "expansion": "deca-",
      "name": "m"
    },
    {
      "args": {
        "1": "en",
        "2": "deka-"
      },
      "expansion": "deka-",
      "name": "m"
    },
    {
      "args": {
        "1": "mul",
        "2": "fr",
        "3": "-"
      },
      "expansion": "French",
      "name": "der"
    },
    {
      "args": {
        "1": "mul",
        "2": "la",
        "3": "decas"
      },
      "expansion": "Latin decas",
      "name": "der"
    },
    {
      "args": {
        "1": "mul",
        "2": "grc",
        "3": "δέκα",
        "4": "",
        "5": "10"
      },
      "expansion": "Ancient Greek δέκα (déka, “10”)",
      "name": "der"
    }
  ],
  "etymology_text": "From deca-/deka-. From French SI metric system origins. From Latin decas, from Ancient Greek δέκα (déka, “10”).",
  "head_templates": [
    {
      "args": {
        "1": "mul",
        "2": "prefix"
      },
      "expansion": "D-",
      "name": "head"
    }
  ],
  "lang": "Translingual",
  "lang_code": "mul",
  "pos": "prefix",
  "senses": [
    {
      "alt_of": [
        {
          "extra": "deca-",
          "word": "da-"
        }
      ],
      "categories": [
        "Translingual nonstandard forms",
        "mul:Metrology"
      ],
      "examples": [
        {
          "text": "Coordinate term: d- (deci-)"
        }
      ],
      "glosses": [
        "Nonstandard form of da- (“deca-”)."
      ],
      "links": [
        [
          "metrology",
          "metrology"
        ],
        [
          "da-",
          "da-#Translingual"
        ]
      ],
      "raw_glosses": [
        "(metrology) Nonstandard form of da- (“deca-”)."
      ],
      "synonyms": [
        {
          "word": "Da-"
        },
        {
          "word": "DA-"
        },
        {
          "word": "dk-"
        },
        {
          "word": "Dk-"
        },
        {
          "word": "DK-"
        }
      ],
      "tags": [
        "alt-of",
        "morpheme",
        "nonstandard"
      ],
      "topics": [
        "metrology"
      ]
    }
  ],
  "word": "D-"
}