The research team discovered complex organic molecules in a pre-planetary disk surrounding the young star.

The company pre-emptively updated its security protocols after the breach to prevent further intrusions.

They reviewed the pre-nuptial agreement carefully before signing.

The Pre-Cambrian strata beneath the valley hold clues to Earth's earliest life.

The museum's exhibit showcased rare microfossils from the Pre-Cambrian.

The patient described a brief episode of pre-syncope after standing up too quickly.

The committee debated whether the company's pre-emption clause would block the takeover bid.

The biologist noted a distinct pre-oral sensory organ that helps the larva find food.

The technician inspected the pre-cooler before the launch to ensure the fuel lines would not freeze.

Could we pre-pone the meeting to Monday so the client can attend?