Of an animal or reptile having a yellow underside or belly. / (figuratively) Uncourageous, cowardly.

Synonym of white phosphorus

A bright yellow color used for New York taxicabs.

cadmium sulphide when used as a pigment

(chemistry) A yellow azo dye used as a food colouring.

(chemistry) a yellow food colouring now known to be toxic and banned in some countries

(chemistry) a yellow azo dye formerly used as a food colouring

(FD&C code) A color additive composed principally of tartrazine.

A bright yellowish-green colour.

A duck, Gavia adamsii, found in the arctic and subarctic.