Accidentally Wrote Vulgar Language in my Exam Watch
I don't think you will be disqualified, but examiners are looking to see that you can use the proper terminology in your exams, so you might lose a small amount of marks for not using the word they're looking for.
I really wouldn't worry too much about it
They won't disqualify for that. They'd only disqualify if the language was particularly offensive (like being racist, homophobic etc) out of the context of the paper. Don't worry about it! Things like this happen; I remember writing f*ck instead of Puck in an essay for Midsummer Night's Dream