Starfish use their tubefeet to cling to rocks in the intertidal zone.

The marine biologist gently probed the starfish's tubefoot to observe its movement.

During the overhaul, the engineers inspected the tubeplate for signs of corrosion around the firetubes.

Before reassembly, the technician inspected the tubeplates for signs of corrosion and deformation.

During the autopsy, the pathologist identified several tuber cinerea along the hypothalamic surface that appeared enlarged.

The researcher arranged the tubelets in the rack and noted their contents before sealing them.

The botanist carefully examined the plant's tubelet under the microscope to understand its role in nutrient transport.