The Collaborative International Dictionary of English v.0.48:

Carpinaceae \Carpinaceae\ n.
   a natural family used in some classification systems to
   include the genera Carpinus; Ostryopsis; and
   Ostryopsis.

   Syn: subfamily Carpinaceae, family Carpinaceae.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Carpinaceae
    n 1: used in some classification systems for the genera
         Carpinus, Ostryopsis, and Ostryopsis [syn: Carpinaceae,
         subfamily Carpinaceae, family Carpinaceae]