liliidae

from WordNet (r) 3.0 (2006)

Liliidae
    n 1: one of four subclasses or superorders of Monocotyledones;
         comprises 17 families including: Liliaceae; Alliaceae;
         Amaryllidaceae; Iridaceae; Orchidaceae; Trilliaceae [syn:
         {Liliidae}, {subclass Liliidae}]

from The Collaborative International Dictionary of English v.0.48

Liliidae \Liliidae\ prop. n.
   one of four subclasses or superorders of Monocotyledones; it
   comprises 17 families including: {Liliaceae}; {Alliaceae};
   {Amaryllidaceae}; {Iridaceae}; {Orchidaceae}; {Trilliaceae}.

   Syn: subclass Liliidae.
        [WordNet 1.5]