syntheses

From synthesis (n): npl: syntheses

WordReference Random House Learner's Dictionary of American English © 2025

syn•the•sis /ˈsɪnθəsɪs/   n., pl. -ses 

/-ˌsiz/ .
1. [uncountable] the combining of the basic elements of separate materials, things, ideas, or other components into a single or unified thing (opposed to analysis).
2. a complex formed into a whole by this combining:
   [countable] His theory was a synthesis of different ideas.

See -thes-.

WordReference Random House Unabridged Dictionary of American English © 2025

syn•the•sis  (sin′thə sis), n., pl. -ses 

(-sēz′). 
1. the combining of the constituent elements of separate material or abstract entities into a single or unified entity (opposed to analysis).
2. a complex whole formed by combining.
3. Chemistry the forming or building of a more complex substance or compound from elements or simpler compounds.
4. Philosophy See under Hegelian dialectic. 
5. Biology See modern synthesis. 
6. Psychology the integration of traits, attitudes, and impulses to create a total personality.

• Greek sýnthesis, equivalent. to syn- syn- + the- (stem of tithénai to put, place) + -sis -sis
• Latin
• 1580–90

syn′the•sist, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

synthesis / ˈsɪnθɪsɪs/ noun ( -ses / -ˌsiːz/)

1. the process of combining objects or ideas into a complex whole
   Compare analysis
2. the combination or whole produced by such a process
3. the process of producing a compound by a chemical reaction or series of reactions, usually from simpler or commonly available starting materials
4. the use of inflections rather than word order and function words to express the syntactic relations in a language
   Compare analysis5

Etymology: 17th Century: via Latin from Greek sunthesis, from suntithenai to put together, from syn- + tithenai to place

ˈsynthesist noun