The definition "'Rat' means (1) a long-tailed rodent, (2) a scoundrel, (3) an informer" is an example of:
A) A biological definition.
B) An operational definition.
C) A lexical definition.
D) A stipulative definition.
E) A theoretical definition.

Question

Quizplus · Accepted Answer

The definition given is a lexical definition, which provides the meaning of a word according to its commonly accepted usage in everyday language. The definition lists three possible meanings of the word "rat" based on how it is commonly used and understood by people.

The Definition "'Rat' Means (1) a Long-Tailed Rodent, (2) a Scoundrel