Meaning of SIMPLEX in English

I. ˈsim-ˌpleks adjective

Etymology: Latin simplic-, simplex — more at simple

Date: 1594

1. : simple , single

2. : allowing telecommunication in only one direction at a time

simplex system

II. noun

( plural sim·plex·es )

Date: 1892

1. or plural sim·pli·ces -plə-ˌsēz or sim·pli·cia sim-ˈpli-sh(ē-)ə : a simple word

2. : a spatial configuration of n dimensions determined by n + 1 points in a space of dimension equal to or greater than n

a triangle together with its interior determined by its three vertices is a two-dimensional simplex in the plane or any space of higher dimension

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.