At the village fete, he bumped fists with an old friend and gave a hearty ooh arrh that made everyone laugh.

To predict how quickly the catalyst will deactivate, we applied the Arrhenius equation to estimate the reaction rate at different temperatures.

The biologist found that the arrhenogenic strain of beetles consistently produced mostly male offspring.

The doctor suspected an arrhenoblastoma after the patient developed sudden virilization and elevated testosterone levels.

The pathologist reported several arrhenoblastomas in the ovarian tissue, prompting further hormonal testing.

In some beetle populations, arrhenogeny leads to entire broods consisting solely of males.

To secure the deal, the buyer gave an arrha to the seller as a sign of good faith.

The merchant accepted the arrhae as proof of the buyer's commitment.

In some hymenopteran species, arrhenotoky allows females to produce male offspring without fertilization.

The parasitic wasp arrhenotokously produces male offspring from unfertilized eggs.