Dictionary.com
Thesaurus.com
Synonyms

assimilation

American  
[uh-sim-uh-ley-shuhn] / əˌsɪm əˈleɪ ʃən /

noun

assimilations plural
  1. the act or process of assimilating, or of absorbing information, experiences, etc..

    the need for quick assimilation of the facts.

  2. the state or condition of being assimilated, or of being absorbed into something.

  3. the process of adopting the language and culture of a dominant social group or nation, or the state of being socially integrated into the culture of the dominant group in a society.

    assimilation of immigrants into American life.

  4. Physiology. the conversion of absorbed food into the substance of the body.

  5. Botany. the total process of plant nutrition, including photosynthesis and the absorption of raw materials.

  6. Sociology. the merging of cultural traits from previously distinct cultural groups, not involving biological amalgamation.

  7. Phonetics. the act or process by which a sound becomes identical with or similar to a neighboring sound in one or more defining characteristics, as place of articulation, voice or voicelessness, or manner of articulation, as in for grandpa.


assimilation Scientific  
/ ə-sĭm′ə-lāshən /
  1. The conversion of nutrients into living tissue; constructive metabolism.


assimilation Cultural  
  1. The process by which a person or persons acquire the social and psychological characteristics of a group: “Waves of immigrants have been assimilated into the American culture.”


Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of assimilation

First recorded in 1595–1605; from Latin assimilātiōn- (stem of assimilātiō ). See assimilate, -ion

Explanation

Whether you’re talking about ideas or nutrients, assimilation describes the act of taking something in and absorbing it fully. Assimilation comes from the Latin assimilationem, meaning “likeness" or "similarity.” People of different backgrounds and beliefs undergo assimilation when, through living together, they come to see themselves as part of a larger community, or when a small group is absorbed into, and made part of, a bigger group, such as the Irish immigrants in America in the 19th century. Assimilation can also refer to the absorption of new ideas into existing knowledge.

Keep Reading on Vocabulary.com

Vocabulary lists containing assimilation

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

About 36 percent of their annual carbon assimilation occurred after growth had already stopped in late summer.

From Science Daily Jul. 9, 2026

But assimilation is both survival and validation for Joan, who returns to school as “Jo Hunt,” now played by Grace.

From Los Angeles Times Mar. 13, 2026

But critics believe this new law will cement Xi's push toward assimilation.

From BBC Mar. 12, 2026

The settlement movement’s contribution to successful assimilation and upward mobility merits the attention this book pays.

From The Wall Street Journal Feb. 24, 2026

I scoffed as I scanned over an opinion piece calling for the assimilation of Eastern European immigrants into Chicago’s well-established German reform community.

From "The City Beautiful" by Aden Polydoros

The broader truth of the recent waves of immigration, the truth of a million small assimilations and adjustments, was easily lost in the tabloid terrors.

From The New Yorker Jun. 29, 2016

These little quirks of idiom not only give the poem force and freshness, they seem to suggest the assimilations that the speakers are already sharing.

From The Guardian Jun. 28, 2010

"Over time you get a bunch of little assimilations."

From Time Magazine Archive

It is possible to make a long list of Frank's sources and assimilations.

From Time Magazine Archive

The life of nations depends upon constant change, the great producer of mixtures and assimilations.

From The Dead Command From the Spanish Los Muertos Mandan by Douglas, Frances

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training