(Canada, US, medicine) the condition on the occurrence of a bomb threat

(rare) brass / chalcopyrite

(uncommon) plural of yellow peril

Alternative form of yellow peril (“alleged threat to Western nations by East Asians”)

an acid dye used as a stain for basic proteins in microspectrophotometry

a yellow dyestuff obtained from certain nitro derivatives of naphthol

Having rump plumage of a yellow colour.

plural of yellow dwarf

(astronomy) A main sequence star, luminosity class V, of spectral type G. / (botany) Any of several diseases of plants caused by viruses, characterized by stunting and yellowing of the leaves.

plural of yellow dwarf