A clay-like material, containing ferric oxide, used as a pigment.

(mineralogy) A yellow, earthy incrustation, consisting essentially of the oxide of uranium, but more or less impure.

A dark yellowish color, a yellowish shade of ochre or olive.

plural of gold ochre

plural of red ochre

Ochre-colored.

(toxicology) Any of a class of mycotoxins, having an isocoumarin structure, produced by some fungi of the genus Aspergillus and others

plural of ochratoxin

(medicine, pharmacology) Abnormal brown pigmentation of tissue (especially cartilage and ligaments), specifically that resulting from the accumulation of a melanin-like pigment derived from homogentisic acid in the metabolic disorder alkaptonuria.

(botany) Alternative form of ocrea / (historical) A greave or legging.