definition of
retch

[1] #1 retch v. [vomit, vomit up, purge, cast, sick, cat, be sick, disgorge, regorge, puke, barf, spew, spue, chuck, upchuck, honk, regurgitate, throw up] eject the contents of the stomach through the mouth; "After drinking too much, the students vomited"; "He purged continuously"; "The patient regurgitated the food we gave him last night". wn

[2] #2 retch n. [heave] an involuntary spasm of ineffectual vomiting; "a bad case of the heaves". wn

[3] #3 retch v. [gag, heave] make an unsuccessful effort to vomit; strain to vomit. wn