DNA microarray

American  

noun

1. an orderly arrangement of DNA sequences on a glass slide or other small solid support, used to look rapidly at the expression of many genes at once.

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DNA microarray Scientific  

1. A small solid support, usually a membrane or glass slide, on which sequences of DNA are fixed in an orderly arrangement. DNA microarrays are used for rapid surveys of the expression of many genes simultaneously, as the sequences contained on a single microarray can number in the thousands.

2. Also called DNA chip

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Example Sentences

Instead of relying on older DNA microarray methods, the team used whole-genome sequencing, which reads nearly all three billion DNA base pairs in a person's genome.

From Science Daily • May 14, 2026

Wang, then a PhD student, had just published details of a new type of DNA microarray with his principal investigator at the time, Joseph DeRisi, now at the University of California, San Francisco.

From Nature • Jun. 25, 2019

Scientists use DNA microarray technology to study hundreds or thousands of genes at once, to understand their activity levels.

From Textbooks • Jan. 1, 2018