Word.ws English Dictionary

CD4

CD4 noun: a glycoprotein found on the surface of helper T cells and several other types of immune cells.

Noun

CD4 (countable and uncountable, plural CD4s)

  1. A glycoprotein found on the surface of helper T cells and several other types of immune cells.
  2. (countable) A CD4+ helper T cell.
    • In short, while CD4 counts can tell you where you are now, the viral load tells you where you are going.1996 September, Louise Rice, “New Knowledges, New Treatments, New Hope”, in Gay Community News, page 5

Forms of CD4

pluralCD4s

Origin of CD4

Initialism of cluster of differentiation type 4.

Words formed from CD4

Questions about CD4

What does CD4 mean?
CD4 means a glycoprotein found on the surface of helper T cells and several other types of immune cells.
What part of speech is CD4?
CD4 is a noun.
What is the plural of CD4?
The plural of CD4 is CD4s.

Words near CD4 in the dictionary

  1. CD33
  2. CD35
  3. CD38
  4. CD38s
  5. CD3s
  6. CD4
  7. CD4+
  8. CD4+s
  9. CD40
  10. CD42
  11. CD42s

Source and license

Adapted from Wiktionary: CD4 (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: “CD4.” Word.ws, https://word.ws/cd4. Based on Wiktionary, CC BY-SA 4.0.