The Collaborative International Dictionary of English v.0.48:

Mimosaceae \Mimosaceae\ prop. n.
   A natural family of spiny woody plants (usually shrubs or
   small trees) whose leaves mimic animals in sensitivity to
   touch; commonly included in the family Leguminosae.

   Syn: family Mimosaceae.
        [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Mimosoideae \Mimosoideae\ prop. n.
   An alternative name used in some classification systems for
   the family Mimosaceae.

   Syn: subfamily Mimosoideae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Mimosaceae
    n 1: family of spiny woody plants (usually shrubs or small
         trees) whose leaves mimic animals in sensitivity to touch;
         commonly included in the family Leguminosae [syn:
         Mimosaceae, family Mimosaceae]