The root meaning 'hair-like' is?

• A. Cil
• B. Cide
• C. Circum
• D. Chrono

Answer: (A)

The concept here is recognizing a root that conveys hair-like characteristics in medical terminology. The form cil- comes from cilium, which is a tiny hair-like projection on a cell. That connection to hair-like structures is why cil- is used to describe things related to hair-like features, such as ciliary bodies or ciliopathy. The other roots point to completely different ideas: cide means to kill, circum means around, and chrono means time. So cil- is the best fit for the meaning “hair-like.”