Which term is not associated with the reproductive system?

The term that is not associated with the reproductive system is "ophthalm/o." This term pertains to the eyes. In medical terminology, "ophthalm/o" is used in words related to eye anatomy, eye diseases, and vision-related conditions.

In contrast, the other terms directly relate to the reproductive system. "Onc/o" refers to tumors or cancer, which can intersect with reproductive health but is more broadly applicable to all types of tumors. "Orchid/o" specifically relates to the testes, while "oophor/o" pertains to the ovaries. Both of these terms have a direct connection to male and female reproductive anatomy, respectively. Therefore, among the options provided, "ophthalm/o" stands out as the one term that does not belong to the reproductive system.