Word.ws English Dictionary

CD21

CD21 noun: b-cell and FDC membrane protein involved in the complement system and B cell coreceptor complex, and bound by EBV.

Noun

CD21 (uncountable)

  1. B-cell and FDC membrane protein involved in the complement system and B cell coreceptor complex, and bound by EBV.
    Synonyms:
    Complement receptor type 2, complement C3d receptor, Epstein-Barr virus receptor

Synonyms of CD21

  • Complement receptor type 2
  • complement C3d receptor
  • Epstein-Barr virus receptor

Origin of CD21

from cluster of differentiation

Questions about CD21

What does CD21 mean?
CD21 means b-cell and FDC membrane protein involved in the complement system and B cell coreceptor complex, and bound by EBV.
What part of speech is CD21?
CD21 is a noun.

Words near CD21 in the dictionary

  1. CD18
  2. CD18s
  3. CD19
  4. CD19s
  5. CD20
  6. CD21
  7. CD22
  8. CD22s
  9. CD23
  10. CD3
  11. CD30

Source and license

Adapted from Wiktionary: CD21 (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “CD21.” Word.ws, https://word.ws/cd21. Based on Wiktionary, CC BY-SA 4.0.