Eponym - the name of the object after any person with whom they are connected. This connection can be varied - an indication of a person in possession of the feature, an identification of the researcher discovering a phenomenon, an expression of respect for the specialist, etc.. Such a connection can be both factually credible, and imaginative, legendary, etc. Eponym has been amply studied by linguists and representatives of other fields of knowledge. Eponyms denoting parts of the body represent one group of such names.