simplex

Fetched 2026-10-27 (live).

Synonyms: simple, implex, simpler, simples

Antonyms: simple, implex, simpler, simples

Related words from Datamuse; suggestions, not definitions.

Adjective

1. Having a single structure; not composite or complex; undivided, unitary.
2. Of an eye: (supposedly) having pigment on only the posterior surface of the iris and not the anterior surface, and thus appearing blue; this was later found to be inaccurate, as eye colour is due to the amount of pigment in the anterior surface of the iris; also, of eye pigmentation: present only on the posterior surface of the iris; and of a person: having eyes with this form of pigmentation.
3. Of a circuit or device: involving signals which travel in one direction at a time; unidirectional.
4. Of a polyploid organism: having one dominant allele at a given locus on all homologous chromosomes.
5. Of a polyploid organism: having one dominant allele at a given locus on all homologous chromosomes.
6. Synonym of heterozygous (“of an organism: having two different alleles in a given gene”).
7. Of a word: having no (derivational) affixes; simple, monomorphemic, uncompounded.
8. Of an apartment (or, sometimes, another type of property): having only one floor or storey; single-storey.

Noun

1. A generalization of a triangle or tetrahedron to an arbitrary dimension; more accurately, the convex hull of n+1 affinely independent points in n-dimensional space.
2. A word which is not compound and contains no derivational affixes (inflectional affixes are usually disregarded); a monomorphemic word.
   • The word weak is a simplex. Its derivative weaken is not.
3. A word which is not compound and contains no derivational affixes (inflectional affixes are usually disregarded); a monomorphemic word.
   • The word weak is a simplex. Its derivative weaken is not.
4. In full simplex sentence: in transformational grammar: a simple sentence which is the product of a few transformations; a kernel sentence.
5. An apartment (or, sometimes, another type of property) having only one floor or storey; a single-storey property.

Source: Wiktionary · CC BY-SA 3.0 (Wiktionary) · cached copy, not a rewrite.