The Collaborative International Dictionary of English v.0.48:
Empetraceae \Empetraceae\ n. a natural family of heathlike shrubs including the crowberry (Empetrum nigrum). Syn: family Empetraceae, crowberry family. [WordNet 1.5 +PJC]WordNet (r) 3.0 (2006):
Empetraceae n 1: heathlike shrubs [syn: Empetraceae, family Empetraceae, crowberry family]