halfspace

noun — 2 senses

halfspace

noun

Etymology From half + space.

1

Geometry, Mathematics, Sciences Either of the two parts of a three-dimensional object cut by a two-dimensional plane

2

Geography, Geology, Natural sciences A simple mathematical model of the structure of the Earth, as used in seismology.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.