What is "seraphs"

Seraph \Ser"aph\, n.; pl. E. Seraphs, Heb. Seraphim. [Heb. ser[=a]phim, pl.] One of an order of celestial beings, each having three pairs of wings. In ecclesiastical art and in poetry, a seraph is represented as one of a class of angels.
--Is

1. vi. 2.

   As full, as perfect, in vile man that mourns, As the rapt seraph that adores and burns.
   --Pope.

   Seraph moth (Zo["o]l.), any one of numerous species of geometrid moths of the genus Lobophora, having the hind wings deeply bilobed, so that they seem to have six wings.

n. (plural of seraph English)

The Seraphs (singular: Seraph) were an alien race in the original Battlestar Galactica series from 1978/79 and its spinoff series, Galactica 1980. They were never expressly referred to by name in the series, but were called "Seraphs" in the scripts for the episodes in which they appear, as well as in the mid-1990s Galactica comic books.