pinnule

P3I1N1N1U1L1E1

noun

Any of the ultimate leaflets of a bipinnate or tripinnate leaf; a subleaflet.

Similar
pinnulapinna
OriginLatin pinnula →
Scrabble 9
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Meanings

nounpinnule (plural pinnules)

plural pinnules

  1. biologyAny of the ultimate leaflets of a bipinnate or tripinnate leaf; a subleaflet.
  2. biologyA part or an organ which resembles the barb of a feather, particularly the side branches on the stalks of crinoids; Any of the lateral divisions of the finger-like stalks of an encrinite.

Synonyms & antonyms

Similar
pinnula

noundivision of a usually pinnately divided leaf

Similar
pinna
Broader
leaflet
Also see
pinna

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Latinpinnula
  2. Englishpinnule

From Latin pinnula.

More words from Latin

Full word history & related roots →
Cite this entry
APA

pinnule. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/pinnule

MLA

“pinnule.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pinnule. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “pinnule,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/pinnule.

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