I always bring my barbell bar pads to the gym to protect my shoulders during squats.

I wrapped a barbell bar pad around the bar to protect my shoulders during heavy squats.

The botanist noted that the leaf margins were distinctly barbellulate, giving the plant a rough texture to the touch.

The botanist examined the leaf under a microscope and pointed out a tiny barbella along its margin.

The ichthyologist carefully examined the barbellae under the microscope, noting subtle differences in structure.