synthesis

noun

syn·​the·​sis ˈsin(t)-thə-səs 

plural syntheses ˈsin(t)-thə-ˌsēz 

1

a

: the composition or combination of parts or elements so as to form a whole

b

: the production of a substance by the union of chemical elements, groups, or simpler compounds or by the degradation of a complex compound

c

: the combining of often diverse conceptions into a coherent whole

also : the complex so formed

2

a

: deductive reasoning

b

: the dialectic combination of thesis and antithesis into a higher stage of truth

3

: the frequent and systematic use of inflected forms as a characteristic device of a language

synthesist

ˈsin(t)-thə-sist 

noun

Synonyms

• admixture
• alloy
• amalgam
• amalgamation
• blend
• cocktail
• combination
• composite
• compound
• conflation
• emulsion
• fusion
• intermixture
• meld
• mix
• mixture

Examples of synthesis in a Sentence

a philosophy that is a kind of synthesis of several schools of Western and Eastern thought

Recent Examples on the Web

Boards increasingly need a comprehensive synthesis of enterprise risk, including potential unknowns that may be developing beneath the surface. —David Benigson, Forbes, 5 Mar. 2025

Muscle and nerve function: Magnesium is needed for some of the enzyme systems that regulate muscle and nerve function Protein production: Magnesium is needed for enzymatic reactions involved in protein synthesis. —Jennifer Lefton, Ms, Rd/n, Cnsc, Fand, Verywell Health, 26 Feb. 2025

Magnesium is important for protein synthesis and muscle contraction, so maintaining optimal magnesium stores is necessary for muscle growth and strength. —Jillian Kubala, Rd, Health, 25 Feb. 2025

Even genes involved in gonadal development and hormone synthesis can be found on most any chromosome, mapping to locations throughout the genome that freely recombine. —Donna L. Maney, Scientific American, 18 Feb. 2025

Word History

Etymology

Greek, from syntithenai to put together, from syn- + tithenai to put, place — more at do

First Known Use

1589, in the meaning defined at sense 1a

Phrases Containing synthesis

• synthesis gas

Rhymes for synthesis

• synthesise
• biosynthesis
• photosynthesis
• nucleosynthesis

Kids Definition

synthesis

noun

syn·​the·​sis ˈsin(t)-thə-səs 

plural syntheses -thə-ˌsēz 

1

: the combination of parts or elements so as to form a whole

especially : the production of a substance by union of chemically simpler substances

2

a

: the combining of often very different ideas into an ordered whole

b

: the product so formed

Medical Definition

synthesis

noun

syn·​the·​sis ˈsin(t)-thə-səs 

plural syntheses -ˌsēz 

1

: the composition or combination of parts or elements so as to form a whole

2

: the production of a substance by the union of chemical elements, groups, or simpler compounds or by the degradation of a complex compound

protein synthesis