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

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

When copying the medieval text, he chose to umbelappe the plant name to preserve the original orthography.

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

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

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

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.