" 

 Another title that's on my mind is Chinese classifier. I would have thought that, if anything, that one ought to be plural and this one singular. Because ""Chinese character"" is a name (though composed fairly transparently composed of two parts) for this type of object (whose common use is certainly not limited to China or the Chinese language(s)), whereas ""Chinese classifier(s)"" is much more of a descriptive title - it means just those classifiers that are used in Chinese.   "