1) American slang for to vomit 2) Attempt to hurl 3) Attempt to throw up 4) Be sick 5) Dry heave 6) Heave 7) React to mal de mer 8) React violently 9) Spasm 10) Strain to vomit 11) Try to vomit 1) Barf 2) Choke 3) Regorge 4) Upbraid 5) Upchuck 
• (v. t. & i.) To care for; to heed; to reck. • (v. i.) To make an effort to vomit; to strain, as in vomiting.
The action of the stomach and esophagus to try to vomit (eject some or all of the contents of the stomach). Retching that does not cause vomiting is called dry heaves.
To make an involuntary effort to vomit. ... Origin: A.S. Hraecan, to hawk ... (05 Mar 2000) ... 
Retch intransitive verb [ imperfect & past participle Retched ; present participle & verbal noun Retching .] [ Anglo-Saxon hr...can to clear the throat, hawk, from hraca throat; akin to German rachen , and perhaps to...Retch transitive verb & i. [ See Reck .] To care for; to heed; to reck. [ Obsolete] Chaucer. 
Type: Term Pronunciation: rech Definitions: 1. To make an involuntary effort to vomit.
Retch is American slang for to vomit
noun an involuntary spasm of ineffectual vomiting; `a bad case of the heaves`