English word origin

Etymology of CD5

from Compact Disc

2 source sectionsBrief source recordWiktionary original ↗

In this entry · 2 source sections

The source etymologies

Wiktionary via Kaikki / Wiktextract

The source reports below are imported and unreviewed by *SET-U. Separate numbered origins and differing source variants are preserved; agreement within this extraction is not independent corroboration.

Source etymology 1

Original entry ↗

noun

a 120-mm (5-inch) CD (compact disc) · a 5-inch CD single

Selected source glosses provide context, not a complete modern definition inventory

from Compact Disc

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

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  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "a 120-mm (5-inch) CD (compact disc)",
        "a 5-inch CD single"
      ],
      "tags": [],
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      "rawRecordSha256": "ffc1a2490480764563b2aed989232c3457374150a86f2f8861c55f601baf34f6",
      "sourceRecordOrdinal": 1898549
    }
  ],
  "omittedAuxiliaryFields": {
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  }
}

Source etymology 2

Original entry ↗

noun

protein found on B and especially on activated T cells

Selected source glosses provide context, not a complete modern definition inventory

from cluster of differentiation

Inspect preserved source fields

Raw extraction fields are retained for auditing. Their order does not establish ancestry.

{
  "templates": [],
  "links": [],
  "references": [],
  "descendants": [],
  "lexical": [
    {
      "pos": "noun",
      "glosses": [
        "protein found on B and especially on activated T cells"
      ],
      "tags": [],
      "recordId": "8c2b57043dde647c94f0e8cb1894ec67b819e1403807e6ff4818a6372c4d745d",
      "rawRecordSha256": "0e4bab53fc999cb59cc614f09a8c8f6cb58a5c54d4c9e2b0bb7dc6103c82d5d3",
      "sourceRecordOrdinal": 1898550
    }
  ],
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Where this record stops

This page does not supply an independently verified sound-change sequence, first-use manuscript or complete family tree unless a cited analysis explicitly establishes one. Missing detail here is a limit of this record—not a claim that humanity knows nothing more.

An older meaning does not determine what a word must mean today. Follow the sources, preserve disagreements, and keep ancestry separate from interpretation.

Contribute located evidence for CD5 →

Source and snapshot

Imported from Wiktionary contributors; extracted by Tatu Ylonen / Wiktextract / Kaikki.org. Selected fields are reformatted and grouped; wording, source identity and etymology sections are retained. CC-BY-SA-4.0 applies to the imported source material.

Dump: 2026-10-01 · Extracted: 2026-10-30. These are snapshot dates, not the word’s first attestation or the page’s revision date.

Source entry and bibliography ↗Wiktionary revision history ↗Acquisition and rights ledger

Machine-source provenance

Source SHA-256: 5ff2c072f8099f2d2ce484bd6957bf179f046d2ad37bc36555edf8bb84cb5291
Import run: 73216b9a9b78ed3830994bf853103716f5a4dc57099e371e9f8fdc468facca26
Permanent entry ID: w-Q0Q1