The word **抽搐** (chōuchù), meaning "to convulse" or "to have spasms," is a typical Chinese compound word formed through the combination of two characters with closely related meanings. The first character, **抽** (chōu), carries the core idea of "pulling," "twitching," or "jerking." The second character, **搐** (chù), specifically means "to cramp" or "to contract involuntarily." When paired, they create a **synonym compound**, where both components reinforce and specify the same general concept of involuntary, jerky muscular contractions. This formation follows the common Chinese morphological pattern of combining semantically similar characters to produce a precise, often technical term—in this case, vividly depicting the physical action of a spasm.