A Secchi disc was lowered into the lake to measure water clarity during the field survey.

I found an old flippy disc in the attic and wondered what files it might contain.

She discovered a rare laser disc in a box of old movies and couldn't stop smiling.

Scientists modeled how ecosystems might vary across an Alderson disc to understand its habitability.

My grandfather kept a single floppy disc from his old computer in a shoebox.

The technician replaced the damaged fixed disc to restore the server's performance.

The museum displayed an original Nipkow disc that played a crucial role in the development of mechanical television.

The museum displayed an early Nipkov disc that had been used in experimental mechanical television.

After inheriting the registry, she discovered her grandmother's disc number stamped on a small metal tag that identified her in old Canadian records.

During the inspection, the mechanic noted that the front disc brake was worn and recommended replacing the pads.