tonofibril

T1O1N1O1F4I1B3R1I1L1

noun

A structural fibril of tonofilaments found in the cytoplasm of epithelial cells

OriginEnglish fibril ← Ancient Greek τόνος (tónos) ← Proto-Hellenic *tónos →
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Meanings

nountonofibril (plural tonofibrils)

plural tonofibrils

  1. biologyA structural fibril of tonofilaments found in the cytoplasm of epithelial cells

Origin

  1. Proto-Indo-European*ten-
  2. Proto-Indo-European*tónos
  3. Proto-Hellenic*tónos
  4. Ancient Greekτόνος (tónos)
  5. Englishtono-
  6. Englishfibril
  7. Englishtonofibril

From tono- + fibril.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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