The dentist explained that the patient's Colorado brown stain was caused by excessive fluoride exposure during tooth development.

The dermatologist explained that port-wine stains on the child's cheek are caused by abnormal blood vessels.

Ziehl-Neelsen stains are essential for identifying acid-fast bacilli in clinical specimens.

The laboratory technician carefully applied the Ziehl-Neelsen stain to the sputum sample to check for tuberculosis.

The new upholstery was cheaper, but it's stainable and showed coffee rings after only one week.

The stainlessness of the new countertops made the kitchen look pristine.

She washed the baby's bib stainlessly, making it look brand new.

The stainability of the new fabric worried the interior designer, who feared it would quickly show everyday marks.

The fabric testers recorded varying stainabilities across the new collection, noting which dyes resisted wine and oil the best.

The careless soldier staineth his banner with mud after the march.