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

umbel \um"bel\, n. l. umbella a little shadow, umbrella, dim.
   of umbra shade. see umbrella. bot.
   a kind of flower cluster in which the flower stalks radiate
   from a common point, as in the carrot and milkweed. it is
   simple or compound; in the latter case, each peduncle bears
   another little umbel, called umbellet, or umbellule.
   1913 webster
see also:
umbrella 

[2] : WordNet (r) 2.0

umbel
     n : flat-topped or rounded inflorescence characteristic of the
         family umbelliferae in which the individual flower stalks
         arise from about the same point; youngest flowers are at
         the center

Umbel >> U Words
Umbel, definition of term: Umbel
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