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单词 pinnule
释义

WordReference Random House Unabridged Dictionary of American English © 2024
pin•nule  (pinyo̅o̅l),USA pronunciation n. 
  1. Zoology
    • a part or organ resembling a barb of a feather, a fin, or the like.
    • a finlet.
  2. Botanya secondary pinna, one of the pinnately disposed divisions of a bipinnate leaf.
  3. a metal plate with a small hole in it, used as a sight in a quadrant.
  • Latin pinnula pinnula
  • 1585–95;
pin•nu•lar  (pinyə lər),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
pinnule /ˈpɪnjuːl/ n ( pl pinnules, pinnulae /ˈpɪnjʊˌliː/)
  1. any of the lobes of a leaflet of a pinnate compound leaf, which is itself pinnately divided
  2. any feather-like part, such as any of the arms of a sea lily
Etymology: 16th Century: from Latin pinnula, diminutive of pinna feather

ˈpinnular adj
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