regular convex solid vs regular polyhedron

regular convex solid and regular polyhedron both are nouns.

Word	Noun	Adjective	Verb	Adverb
regular convex solid	Yes	No	No	No
regular polyhedron	Yes	No	No	No

As nouns, regular convex solid and regular polyhedron are synonyms defined as:

regular convex solid and regular polyhedron: any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent

Other synonyms of regular convex solid include ideal solid, Platonic body, Platonic solid, regular convex polyhedron.

regular convex solid (noun)	regular polyhedron (noun)
any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent	any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent