In the pond ecosystem, secondary consumers like bass and frogs help regulate the populations of insects and small fish.

The town's old red-brick secondary moderns were converted into community centers after the schools closed.

The research team compared the predicted secondary structures across several protein families.

During the inspection, the engineer found corrosion on several secondary ports that required immediate maintenance.

The textbook includes a detailed section explaining secondary valences and their role in complex ion formation.

Secondary phosphines are commonly used as ligands in transition-metal catalysis to fine-tune both steric and electronic properties.

The museum's collection included several secondary works that provided context for the artist's major masterpieces.

Secondary immunodeficiencies often complicate treatment plans for patients receiving aggressive chemotherapy.

Researchers documented multiple secondary victimisations when survivors reported their experiences to authorities.

A secondary colour can be made by mixing two primary colours on the palette.