Is nosed a common noun

The Word 'nosed' is not a noun, it is the past participle, past tense of the verb to nose. The past participle of the verb is also an adjective. Examples:

Verb: The raccoon nosed all around the trash can; he knew there was something good in there.

Adjective: I prefer a long nosed dog to a pug face.

The noun form is nose, a common noun, a Word for any nose of any kind.