FEATURE-LENGTH (adjective) definition and synonyms | Macmillan Dictionary.

Can length be an adjective?

Included below are past participle and present participle forms for the verbs length and lengthen which may be used as adjectives within certain contexts. Having length; long and overextended, especially in time rather than dimension.

Is length a noun or adjective?

The measurement of distance along the longest dimension of an object.