isoantigen

I1S1O1A1N1T1I1G2E1N1

noun

an immunologically active material (especially a protein or polysaccharide) that is present only in some individuals of a particular species; responsible for the formation of antibodies

Similar
alloantigen
OriginEnglish antigen ← French antigène ← Ancient Greek ἀντι- (anti-) →
Scrabble 11
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounisoantigen (plural isoantigens)

plural isoantigens

  1. an immunologically active material (especially a protein or polysaccharide) that is present only in some individuals of a particular species; responsible for the formation of antibodies

    Synonyms: alloantigen

Synonyms & antonyms

nounan immunologically active material (especially a protein or polysaccharide) that is present only in some individuals of a particular species; responsible for the formation of antibodies

Similar
alloantigen

Origin

  1. Ancient Greekῐ̓́σος (ĭ́sos)
  2. Englishiso-
  3. Proto-Indo-European*h₂ent-
  4. Proto-Indo-European*h₂énts
  5. Proto-Indo-European*h₂énti
  6. Ancient Greekᾰ̓ντῐ́ (ăntĭ́)
  7. Ancient Greekἀντι- (anti-)
  8. Frenchanti-
  9. Frenchgène
  10. Frenchantigène
  11. Englishantigen
  12. Englishisoantigen

From iso- + antigen.

Full word history & related roots →
Cite this entry
APA

isoantigen. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/isoantigen

MLA

“isoantigen.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/isoantigen. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “isoantigen,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/isoantigen.

Source: isoantigen on Wiktionary, CC BY-SA 4.0.