Full free-standing three-dimensional sculptures as opposed to reliefs.

"Hay dos tipos de esculturas: las exentas y el relieve.
Las exentas o de bulto redondo, son aquellas que al ser tridimensionales pueden ser observadas desde todos los ángulos."
http://www.portaldearte.cl/educacion/media/1ero/escultura.ht...

"El relieve es la técnica escultórica en la que las formas modeladas o talladas resaltan respecto a un entorno plano. A diferencia de las esculturas de bulto redondo (que se esculpen reproduciendo su relieve o profundidad natural), los relieves están integrados en un muro, generalmente, o en caso de ser arte mobiliar, al soporte que los enmarca"
http://es.wikipedia.org/wiki/Relieve_(arte)

"A basic distinction is between sculpture in the round, free-standing sculpture, such as statues, not attached (except possibly at the base) to any other surface, and the various types of relief, which are at least partly attached to a background surface."
http://en.wikipedia.org/wiki/Sculpture

"ivory tusks can be used whole, cut into panels for relief carving, or cut into blocks for carving smaller pieces in-the-round."
Looking at European sculpture: a guide to technical terms
http://books.google.es/books?id=8fXkKenvXOEC&pg=PA49&lpg=PA4...
See also definition of "in-the-round" on p. 46 of this book.

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Note added at 7 hrs (2013-05-06 05:32:30 GMT)
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Or of course "works in the round" if you prefer.