What does the prefix "ambi-" refer to?

The prefix "ambi-" refers to the concept of "both." It is derived from Latin, where "amb-" means "both" or "on both sides." In medical terminology and other contexts, "ambi-" is used to indicate something that pertains to or involves two parts or sides. For example, "ambidextrous" describes a person who is equally skilled with both hands. Understanding the meaning of this prefix helps in deciphering various terms that incorporate it, reinforcing the idea of duality or presence on both sides. The other options do not align with this specific meaning; "many," "all," and "single" do not capture the dual nature implied by "ambi-".