1. 
[syn: duckbill, duck-billed]
The Collaborative International Dictionary of English v.0.48:
duck-billed \duck-billed\ adj.
   1. having a beak resembling that of a duck.
   Syn: duckbill, duckbilled.
        [WordNet 1.5]
The Collaborative International Dictionary of English v.0.48:
Duck-billed \Duck"-billed`\, a.
   Having a bill like that of a duck; as, a duck-billed
   dinosaur..
   [1913 Webster]
WordNet (r) 3.0 (2006):
duck-billed
    adj 1: having a beak resembling that of a duck; "a duck-billed
           dinosaur" [syn: duckbill, duck-billed]