Confusing Dictionary Definitions

(Dictionaries are often more confusing than they are at clearly defining the meanings of words.)

The examples of definitions, as shown below, came from some well-known dictiionaries.

anthropologist (s) (noun), anthropologists (pl)
1. Someone who studies anthropology is an anthropologist.
2. One who is versed in anthropology.
3. One who studies or is versed in anthropology.
4. A social scientist who specializes in anthropology.
5. An expert in anthropology.
diffusible (adjective), more diffusible, most diffusible
1. Capable of diffusing or undergoing diffusion.
2. Capable of diffusing, as a fluid; diffusive.
pomposity (s) (noun), pomposities (pl)
1. Pompous demeanor, speech, or action.
2. A pompous gesture, habit, or action.
pomposity (s) (noun), pomposities (pl)
1. The quality of being pompous.
2. An instance of being pompous, as by ostentatious loftiness of language, manner, or behavior.
1. Pompous demeanor, speech, or action.
2. A pompous gesture, habit, or action.