The word **抗体 (kàngtǐ)**, meaning "antibody," is a modern Chinese compound formed through semantic translation, where each character directly corresponds to a morpheme in the source language's term. The first character, **抗 (kàng)**, means "to resist" or "to fight against," and the second, **体 (tǐ)**, means "body" or "substance." Thus, the compound literally translates to "resisting body," which is a calque of the Western scientific term *antibody* (from *anti-*, meaning "against," and *body*). It exemplifies how modern Chinese creates precise technical vocabulary by combining existing meaningful characters to logically convey a new, imported concept.