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.

If a human embryo has XY chromosomes the SRY gene leads to the formation of testes, which then produce hormones including testosterone that lead to male development - and can increase muscle mass and strength.

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

Over the past couple of decades researchers have found that long-distance signaling goes beyond a few glands and organs—the pancreas, thyroid, testes, and ovaries—that spill out familiar hormones such as insulin and testosterone.

From Science Magazine • May 22, 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