lateral area
English
![](Images/wiktionary/Pentagonal_Prism_BC.svg.png.webp)
A prism with a pentagonal base. The sum of the yellow faces' areas is the lateral area of the prism.
Noun
lateral area (plural lateral areas)
- (geometry) The sum of the areas of the lateral (vertical) faces of a cylinder, cone, frustum, or the like.
- (medicine, dated) A particular part of the medulla oblongata.