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

Together with other partner proteins, TOR controls how cells respond to nutrients, stress and environmental signals, thereby influencing major processes such as protein synthesis and immune function. —Ted Powers, The Conversation, 29 Sep. 2025

Analysis of the evidence, synthesis of that analysis. —Literary Hub, 29 Sep. 2025

Anderson is a rare and rangy breed of cinematic maximalist—a satirical quasi-historian and pop-cultural magpie with a gift for weaving disparate influences into a marvellously unruly synthesis. —Justin Chang, New Yorker, 26 Sep. 2025

The Chinese firm will integrate Nvidia’s Physical AI tools into its cloud platform, enabling capabilities such as data synthesis, model training, simulation, and validation testing for robotics, autonomous driving, and connected environments. —Neetika Walter, Interesting Engineering, 24 Sep. 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