transitive verb. : to incorrectly identify or set forth the meaning of (something, such as a word) : to define wrongly a term that is often misdefined in textbooks …

Is misdefine a word?

Misdefine meaning

To define a term in a manner that is not correct; to define wrongly.

What does misclassified mean?

: to assign (someone or something) to an incorrect group or category : to classify wrongly a species misclassified in the wrong genus.