[1] : The Collaborative International Dictionary of English v.0.48

plumula \plu"mula\, n.; pl. l. plumule, e.-las. l. see
   plumule.
   1. bot. a plumule.
      1913 webster

   2. zool. a down feather.
      1913 webster
see also:
plumule -las 

[2] : The Collaborative International Dictionary of English v.0.48

plumule \plu"mule\, n. l. plumula, dim. of pluma a feather; cf.
   f. plumule.
   1. bot. the first bud, or gemmule, of a young plant; the
      bud, or growing point, of the embryo, above the
      cotyledons. see illust. of radicle. --gray.
      1913 webster

   2. zool.
      a a down feather.
      b the aftershaft of a feather. see illust. under
          feather.
      c one of the featherlike scales of certain male
          butterflies.
          1913 webster
see also:
radicle feather 

[3] : WordNet (r) 2.0

plumule
     n : down feather of young birds; persists in some adult birds

Plumule >> P Words
Plumule, definition of term: Plumule
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