The Collaborative International Dictionary of English v.0.48:

Balsaminaceae \Balsaminaceae\ n.
   a natural family comprising the balsams, distinguished from
   the family Geraniaceae by the irregular flowers.

   Syn: family Balsaminaceae, balsam family.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Balsaminaceae
    n 1: distinguished from the family Geraniaceae by the irregular
         flowers [syn: Balsaminaceae, family Balsaminaceae,
         balsam family]