isometric vs three-dimensional

isometric is a noun but three-dimensional is not a noun.

Word	Noun	Adjective	Verb	Adverb
isometric	Yes	Yes	No	No
three-dimensional	No	Yes	No	No

isometric (noun)	three-dimensional (noun)
a line connecting isometric points

isometric (adjective)	three-dimensional (adjective)
of or involving muscular contraction in which tension increases while length remains constant	having the shape of a cube; having three dimensions
related by an isometry	involving or relating to three dimensions or aspects; giving the illusion of depth
of a crystal system characterized by three equal axes at right angles
having equal dimensions or measurements