pulvinus

pul·vi·nus
P3U1L1V4I1N1U1S1
/pʌlˈvaɪnəs//pəlˈvaɪnəs/

noun

A joint on a plant leaf or petiole that may swell and cause movement of the leaf or leaflet.

Scrabble 13

Meanings

nounpulvinus (plural pulvinae or pulvini)

plural pulvinae · plural pulvini

  1. biologyA joint on a plant leaf or petiole that may swell and cause movement of the leaf or leaflet.

Origin

  1. Latinpulvīnus“cushion, pillow, bolster”
  2. Englishpulvinus

Learned borrowing from Latin pulvīnus (“cushion, pillow, bolster”). Doublet of pillow, polverine, pulvino, pulvillus, and pulvinulus, as well as others.

Full word history & related roots →

Translations

Polish poduszeczka liściowa
  • poduszeczka liściowajoint on a plant leaf or petiole

Rhymes & wordplay

Rhymes with pulvinus

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Cite this entry
APA

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

MLA

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

Chicago

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

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