From Longman Dictionary of Contemporary Englishldoce_321_astretcherstretch‧er1 /ˈstretʃə $ -ər/ noun [countable] 
MHa type of bed used for carrying someone who is too injured or ill to walk
MHa type of bed used for carrying someone who is too injured or ill to walkExamples from the Corpus
stretcher• Right in the middle is a stretcher.• A woman who had just given birth was being lifted off a stretcher.• I felt a right idiot, being carried out on a stretcher, everybody gawping at me.• Buffalo hunters usually worked in parties of four, with one shooter, two skinners, and one hide stretcher and cook.• The mortuary van had moved closer to the rim of the hollow and the stretcher was being manoeuvred into place.stretcherstretcher2 verb [transitive always + adverb/preposition] British English CARRYto carry someone on a stretcherbe stretchered off/into etc Ward was stretchered off early in the game.→ See Verb tableExamples from the Corpus
be stretchered off/into etc• Substitute Warzycha was forced on to the field after only ten minutes after Ward was stretchered off.• But Ward was stretchered off with a broken leg after a challenge by Mark Atkins, who was booked for the tackle.• Right-winger Alan Linton was the first casualty when he was stretchered off with a double break to a leg after 16 minutes. 