simplex

Single direction only

Simplex means simple or having only one part, used primarily in technical contexts.

In telecommunications, simplex describes one-way transmission—data flows in a single direction, unlike duplex systems where it flows both ways.

In geometry, a simplex is the simplest possible shape in any dimension: a point, line segment, triangle, or tetrahedron.

The herpes simplex virus causes cold sores and genital herpes.

geometry

triangle

Three-sided plane figure

dimensional · facet · barycentric · triangulation · mesh · topology · combinatorial · face · edge · point

virus

herpes

Chronic blister-causing virus

oral · labial · infection · outbreak · antiviral · acyclovir · valacyclovir · blister · lesion · shedding

fundamental

basic

Fundamental in nature

foundational · core · essential · primary · underlying · elemental · uncompounded · irreducible · atomic · indivisible

optimization

algorithm

Finite problem-solving procedure

constraint · feasible · objective · iteration · vertex · polyhedron · LP · optimum · bounded

signal

transmission

Sending of information

communication · half-duplex · telegraphy · broadcast · asymmetric · non-reciprocal

Opposites
structural complexity

simplexcomplex

Having many interconnected parts

multiplex · compound · composite · complicated · elaborate

communication directionality

simplexduplex

Divided dwelling, shared walls

full-duplex · bidirectional · half-duplex · two-way · bilateral

Phrases
Family

simple, simplicity, simplify, simplified, simpler, simplest, simpleton, simplistic, simplification

Familiarity
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Used worldwide · Timeless · Rated G