thyrosphere

T1H4Y4R1O1S1P3H4E1R1E1

noun

A spherical cluster of thyroid cancer cells

OriginEnglish sphere ← Middle English spere ← Old French sphere →
Scrabble 22
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Meanings

nounthyrosphere (plural thyrospheres)

plural thyrospheres

  1. A spherical cluster of thyroid cancer cells

Origin

  1. Proto-Indo-European*dʰwer-
  2. Proto-Hellenic*tʰurā
  3. Ancient Greekθῠ́ρᾱ (thŭ́rā)
  4. Ancient Greekθῠρεός (thŭreós)
  5. Proto-Indo-European*weyd-
  6. Proto-Indo-European*wéydos
  7. Proto-Hellenic*wéidos
  8. Ancient Greekεἶδος (eîdos)
  9. Ancient Greekθῠρεοειδής (thŭreoeidḗs)
  10. New Latinthyreoīdēs
  11. Englishthyroid
  12. Englishthyro-
  13. Ancient Greekσφαῖρᾰ (sphaîră)
  14. Latinsphaera
  15. Late Latinsphēra
  16. Old Frenchsphere
  17. Middle Englishspere
  18. Englishsphere
  19. Englishthyrosphere

From thyro- + -sphere.

Full word history & related roots →
Cite this entry
APA

thyrosphere. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/thyrosphere

MLA

“thyrosphere.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thyrosphere. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “thyrosphere,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/thyrosphere.

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