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

• mixture
• amalgamation
• blend
• mix
• amalgam
• alloy
• combination
• fusion

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

Anderson’s synthesis of all of these themes, motifs, and silly gags into One Battle After Another, which saw Anderson’s biggest movie opening ever last month, shows how Pynchon’s ideas have not only aged well but are more visible and relevant. —Kevin Dolak, HollywoodReporter, 6 Oct. 2025

The track is a synthesis of where Swift is in her life, in a pop era threaded with happiness, family and the promise of forever. —Bryan West, USA Today, 3 Oct. 2025

Professor Hao Li, a leading expert in video synthesis, told CNBC that most AI systems today are still trained on linguistic data like books and internet text. —Mackenzie Sigalos, CNBC, 3 Oct. 2025

Without acknowledging it, this bookstore is a synthesis of every experiment in children’s literature from Babar the Elephant and the Pere Castor series in France to Mickey Mouse and cartoons in the United States, via innovative graphic design in Czechoslovakia and Russia in the interwar period. —Literary Hub, 2 Oct. 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