testes

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.

Instead, a subtle form of natural selection within the testes appears to give certain mutations a reproductive advantage, allowing them to become more common during sperm formation.

From Science Daily • Oct. 19, 2025

Some can be born with external female genitalia but functioning testes, and are often certified as female at birth and raised as such.

From BBC • Aug. 31, 2025

In the brain, sexual differentiation starts before birth and results from a combination of sex chromosomes in brain tissue, sex hormones produced by the testes or ovaries and the environment.

From Salon • Apr. 22, 2025

Researchers found high levels of microplastics in human and dog testes.

From Los Angeles Times • May 23, 2024

When young roosters were fed DDT, the testes made only 18 per cent of their normal growth; combs and wattles, dependent for their development upon the testicular hormone, were only a third the normal size.

From "Silent Spring" by Rachel Carson