Researchers found that umbelliferones in the plant extract increased its UV-absorbing properties.

Researchers isolated umbelliferone from carrot extract to study its antioxidant properties.

When the ceremony began, the village elder umbelappes to signal the harvest.

In his 18th-century journals the explorer noted several specimens umbelapping on the marsh edge, a usage that has since fallen from common botanical parlance.

Each morning, the antique translator umbelaps the archaic passage as if reviving a vanished tongue.

At dusk the old meadow umbelapped with Queen Anne's lace swaying in the breeze.

The heavy mist seemed to umbelap the ancient ruins, lending them an otherworldly silence.

The botanist carefully documented each umbellaster he found along the stream.

During the field study, the botanist carefully counted the umbellasters on each specimen.

In our experiments, umbelliferon increased the fluorescence of the solution under UV light.