(Greek mythology) The daughter of Cepheus and Cassiopeia, king and queen of Eritrea, rescued from her sacrifice to the sea monster Cetus by Perseus, who married her; mother of Perses, ancient king of Persia.

Any shrub of the genus Pieris (family Ericaceae), having leathery leaves and small flowers. / Bog rosemary.

plural of andromeda

(astronomy) A spiral galaxy in the Local Group and closest to the Milky Way, visible to the naked eye in the constellation of Andromeda, the brightest of the Messier objects and often referred to by its designation M31.

A plant, Pieris japonica, native to eastern China, Taiwan, and Japan where it grows in mountain thickets.

plural of Japanese andromeda

Any microorganism whose release and spread could cause a public health catastrophe.

plural of Andromeda strain

(astronomy, obsolete) The Andromeda Galaxy, a term that was used before it was known to be a spiral galaxy.