The meaning of the root that denotes likeness is which?

• A. odon
• B. oid
• C. olig(o)
• D. -ology

Answer: (B)

The suffix -oid denotes likeness, meaning “like” or “resembling.” It comes from a root idea of form or appearance, so it turns a base into something that resembles that base. Examples: humanoid means human-like, spheroid means sphere-shaped, asteroid means star-like. The other options point to different concepts: odon relates to tooth, olig(o) means few or scant, and -ology indicates the study of something. So the term that conveys likeness is the one built with -oid.