Uniform Antiprism is Semiregular Polyhedron/Mistake 1/Correction

Source Work

2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.):

2021: Richard Earl and James Nicholson: The Concise Oxford Dictionary of Mathematics (6th ed.):

antiprism

Archimedean solid

Mistake

Antiprism entry

If the end faces are regular and the triangular faces are equilateral, the antiprism is a semi-regular polyhedron.

Archimedean Solid entry

... (right-regular) *antiprisms whose side faces are equilateral triangles are semi-regular [polyhedra].

Correction

Technically, right-regular antiprisms with equilateral triangles as side faces which also have equilateral triangles as bases are not semi-regular polyhedra, as they are octahedra, and so all faces are congruent.

The faces of a semi-regular polyhedron are specifically not all congruent.