Leishmania major is a parasitic protozoan that causes a specific type of leishmaniasis, known as cutaneous leishmaniasis. When discussing this particular pathogen, it is essential to understand its synonyms in order to communicate effectively within scientific and medical communities. Some of the synonyms used for Leishmania major include L. major, Old World Leishmania, and Old World cutaneous leishmaniasis. These terms are interchangeably used to refer to the same species of Leishmania. By recognizing these synonyms, researchers, clinicians, and scientists can exchange information accurately and stay updated with the latest findings and treatments related to this disease.