Definitions
1.nounSomeone who classifies.
2.nounA word or morpheme used in some languages (such as Japanese and American Sign Language), in certain contexts (such as counting), to indicate the semantic class to which something belongs.
3.nounA machine that separates particles or objects of different size or density.
4.nounA program or algorithm that classifies.
5.nounObject which creates the class instances.