The pyrectic eruption was a spectacular sight.

The patient's pyrectic condition required immediate medical attention.

Pyrethrine was commonly used as an insecticide in the past.

Pyretology is a branch of medicine that focuses on the study and treatment of fevers.

The pyrectics were used to treat the fever.

Pyrethrins are natural insecticides derived from chrysanthemum flowers.

The pyrenic landscape was breathtaking.

The pyrenes in the wine grapes give them a distinct flavor.

I sprayed the pyrethroid on the plants to kill the insects.

The pyrethrums in my garden are blooming beautifully.