The Spanish for "table steep-sided flat-topped land" is meseta.

Here's why:

* Meseta is a Spanish word that refers to a high, flat plateau with steep sides. It's a common geographical feature in Spain, particularly in the central region.

* Table in this context describes the flat top of the landform.

* Steep-sided describes the vertical or nearly vertical sides of the plateau.

So, meseta accurately captures all the characteristics of the described landform.