complementation

American  

[kom-pluh-muhn-tey-shuhn] / ˌkɒm plə mənˈteɪ ʃən /

noun

1. complementary distribution.

2. Genetics. the occurrence of a wild-type phenotype when two closely related, interacting mutant genes are expressed in the same cell.

3. Grammar.

   1. complement.

   2. the use of grammatical complements.

4. cooperation in lowering tariffs to permit the movement of components among different countries when it is more profitable for each country to produce parts of a product than the whole.

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Etymology

Origin of complementation

First recorded in 1935–40; complement + -ation

Example Sentences

The technique, called blastocyst complementation, is similar to a technique used to create mice with human immune systems, which have proven to be powerful research tools.

From Science Daily • Apr. 25, 2024

The research team then worked with Sang Yong Kim at NYU's Rodent Genome Engineering Lab using a stem cell technique called "tetraploid complementation" to create a living mouse whose cells included the overwritten genes.

From Science Daily • Nov. 1, 2023

Let’s take a closer look at blastocyst complementation.

From Slate • May 9, 2018

They also made mistakes in their complementation tests of the Ax21 insertion mutant with the wild-type Ax21 gene.

From Scientific American • Oct. 10, 2013

For example, complementation assays with fluorescent proteins or luciferase can be used to follow interacting proteins.

From Nature • Apr. 11, 2012