Which combining form denotes 'same'?

• A. Between
• B. Ipsi
• C. Within
• D. Equal

Answer: (B)

In medical terminology, a combining form is a root with a connecting vowel used to build terms about relationships or characteristics. When the idea is sameness, the form that directly conveys that sense in this context is ipsi-, which means on the same side (as in ipsilateral). That makes it the best fit for denoting “same” among the options, since it explicitly signals sameness in relation to side. The other options don’t function as a combining form for sameness: one means between, another means within, and the last is a plain English word rather than a combining form. (Iso- would be the true combining form for equal/same in general, but it isn’t listed.)