"acu-" meaning in English

{
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "grc",
        "2": "ἀκούω",
        "gloss": "to hear"
      },
      "expansion": "ἀκούω (akoúō, “to hear”)",
      "name": "m"
    }
  ],
  "etymology_text": "From international scientific vocabulary, reflecting a New Latin combining form, from ἀκούω (akoúō, “to hear”).",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "acu-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "acu-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English links with manual fragments",
          "parents": [
            "Links with manual fragments",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "_dis": "66 34",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "derived": [
        {
          "word": "presbyacusis"
        }
      ],
      "glosses": [
        "hearing; sound."
      ],
      "id": "en-acu--en-prefix-6MgnQRtx",
      "links": [
        [
          "hearing",
          "hearing#Noun"
        ],
        [
          "sound",
          "sound#Noun"
        ]
      ],
      "related": [
        {
          "word": "acoustic"
        },
        {
          "word": "acousto-"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "wikipedia": [
    "classical compound",
    "international scientific vocabulary"
  ],
  "word": "acu-"
}

{
  "etymology_number": 2,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*h₂eḱ-"
      },
      "expansion": "",
      "name": "root"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "acus",
        "4": "",
        "5": "needle, pin"
      },
      "expansion": "Latin acus (“needle, pin”)",
      "name": "der"
    }
  ],
  "etymology_text": "From international scientific vocabulary, reflecting a New Latin combining form, from Latin acus (“needle, pin”).",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "acu-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "acu-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English links with manual fragments",
          "parents": [
            "Links with manual fragments",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "needle."
      ],
      "id": "en-acu--en-prefix-Ary03gV~",
      "links": [
        [
          "needle",
          "needle#Noun"
        ]
      ],
      "related": [
        {
          "word": "acute"
        },
        {
          "word": "acuity"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "wikipedia": [
    "classical compound",
    "international scientific vocabulary"
  ],
  "word": "acu-"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English prefixes",
    "English terms derived from Latin",
    "English terms derived from Proto-Indo-European",
    "English terms derived from the Proto-Indo-European root *h₂eḱ-"
  ],
  "derived": [
    {
      "word": "presbyacusis"
    }
  ],
  "etymology_number": 1,
  "etymology_templates": [
    {
      "args": {
        "1": "grc",
        "2": "ἀκούω",
        "gloss": "to hear"
      },
      "expansion": "ἀκούω (akoúō, “to hear”)",
      "name": "m"
    }
  ],
  "etymology_text": "From international scientific vocabulary, reflecting a New Latin combining form, from ἀκούω (akoúō, “to hear”).",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "acu-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "acu-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "related": [
    {
      "word": "acoustic"
    },
    {
      "word": "acousto-"
    }
  ],
  "senses": [
    {
      "categories": [
        "English links with manual fragments"
      ],
      "glosses": [
        "hearing; sound."
      ],
      "links": [
        [
          "hearing",
          "hearing#Noun"
        ],
        [
          "sound",
          "sound#Noun"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "wikipedia": [
    "classical compound",
    "international scientific vocabulary"
  ],
  "word": "acu-"
}

{
  "categories": [
    "English entries with incorrect language header",
    "English lemmas",
    "English prefixes",
    "English terms derived from Latin",
    "English terms derived from Proto-Indo-European",
    "English terms derived from the Proto-Indo-European root *h₂eḱ-"
  ],
  "etymology_number": 2,
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "ine-pro",
        "3": "*h₂eḱ-"
      },
      "expansion": "",
      "name": "root"
    },
    {
      "args": {
        "1": "en",
        "2": "la",
        "3": "acus",
        "4": "",
        "5": "needle, pin"
      },
      "expansion": "Latin acus (“needle, pin”)",
      "name": "der"
    }
  ],
  "etymology_text": "From international scientific vocabulary, reflecting a New Latin combining form, from Latin acus (“needle, pin”).",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prefix",
        "head": "",
        "sort": ""
      },
      "expansion": "acu-",
      "name": "head"
    },
    {
      "args": {},
      "expansion": "acu-",
      "name": "en-prefix"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prefix",
  "related": [
    {
      "word": "acute"
    },
    {
      "word": "acuity"
    }
  ],
  "senses": [
    {
      "categories": [
        "English links with manual fragments"
      ],
      "glosses": [
        "needle."
      ],
      "links": [
        [
          "needle",
          "needle#Noun"
        ]
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "wikipedia": [
    "classical compound",
    "international scientific vocabulary"
  ],
  "word": "acu-"
}