duckbill

== English == === Alternative forms === duck-bill === Etymology === From duck +‎ bill. === Pronunciation === === Noun === duckbill (plural duckbills) (informal) The duck-billed platypus. (informal) A hadrosaur. A fish of the family Percophidae Percophis brasiliensis (Brazilian flathead). Bull ray (Aetomylaeus bovinus, now Pteromylaeus bovinus). (firefighting) A device used to force padlocks. A check valve with two or more flaps, usually shaped like a duck's beak, commonly used in medical applications to prevent contamination due to backflow. A kind of surgical mask with a trapezoid pouch-like design with shortened or absent side edges. A modern and more streamlined and tighter fitting version of a flat cap. (US) Synonym of American paddlefish. ==== Derived terms ==== ==== Related terms ==== duckbilled, duck-billed duck-billed cat ==== Translations ====