(ornithology, hunting) A large funnel-shaped trap constructed of netting or wire mesh and intended to trap ducks, geese, etc.

(set phrase) A trap that commonly deceives those who are new to something, especially a practice or a game.

(genetics) A mutation inserted into an intron in order to identify individual genes

(informal) A scam; a fraudulent deal offered to the unwary.

(rail transport, UK) A set of facing points at the end of a crossing loop or side track parallel to a mainline which will direct a train into a sand drag if the signal on that line is passed at danger, thus preventing the train running onto the main line.

(physics) A local minimum on the graph of yrast for a certain spin.

(construction, plumbing) Synonym of stench trap

(construction, plumbing) Synonym of stench trap

(theater) A kind of stage trapdoor rigged to drop below floor level and slide to one side.

A pipe formed so as to be a seal against the passage of gases.