plural of port-wine stain

(US, dentistry, dated) A brownish stain on the teeth, a symptom of fluorosis.

plural of Ziehl-Neelsen stain

A bacteriological stain used to identify acid-fast organisms, mainly mycobacteria.

An alloy of iron and chromium that resists corrosion.

Made of stainless steel.

Something that stains. / One who stains or tarnishes. / A workman who applies a stain to wood, etc.

Describing an alloy that is resistant to corrosion and discoloration. / Unmarked, spotless.

Short for stainless steel.

Alternative spelling of stainless steel