What is the meaning of the prefix "trans-"?

The prefix "trans-" is derived from Latin, meaning "across" or "through." It is commonly used in various medical and scientific terms to convey the idea of movement from one place to another or a change in state. For instance, in terms like "transfusion," the prefix indicates the transfer of blood from one individual to another, literally meaning to carry blood across. Similarly, "transport" refers to moving something from one location to another, further exemplifying the prefix's meaning of crossing or moving through boundaries.

The other prefixes serve different meanings entirely, which further clarifies why "trans-" specifically indicates the notion of crossing or passing through something.