Question: determine whether the following are ostensive definitions enumerative definitions definitions...
Determine whether the following are ostensive definitions, enumerative definitions, definitions by subclass, etymological definitions, synonymous definitions, or definitions by genus and difference?
1. Psychic is a word that derives from the greek word psyche, which means "mind" or "soul".
2. Bull means a male cow.
3. Sagacious means wise.
4. Optometrist originates from the greek word optos, meaning :seen" or "visible".