Under the microscope, the sponge's fragile spicules shimmered like glass needles.

A spicule from the sponge punctured his glove during the dive.

The radiologist noted spiculation on the mammogram, raising concern for malignancy.

The CT scan revealed spiculations radiating from the mass, suggesting a malignant process.

The botanist noted that the fern's fronds were spiculous, covered in minute, needle-like projections that caught the morning light.

Under the microscope, the fungus spiculates delicate needle-like hyphae that anchor it to the substrate.

Under the microscope, the sea sponge was spiculating, its surface covered with minute, needle-like projections.

The spiculate surface of the sea sponge made it difficult to hold.

He learned to spiculate the wooden stakes before driving them into the ground.

The coral spiculated along its edges, creating a delicate fringe that glittered in the sunlight.