'Seraphim' definitions:

Definition of 'Seraphim'

From: GCIDE

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. --Isa. vi. 2. [1913 Webster]
As full, as perfect, in vile man that mourns, As the rapt seraph that adores and burns. --Pope. [1913 Webster]
Seraph moth (Zool.), 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. [1913 Webster] Seraphic

From: GCIDE

Seraphim \Ser"a*phim\, n. The Hebrew plural of Seraph. Cf. Cherubim. [1913 Webster]
Note: The double plural form seraphims is sometimes used, as in the King James version of the Bible, --Isa. vi. 2 and 6. [1913 Webster]

Seraphim mentioned in Isa. 6:2, 3, 6, 7. This word means fiery ones, in allusion, as is supposed, to their burning love. They are represented as "standing" above the King as he sat upon his throne, ready at once to minister unto him. Their form appears to have been human, with the addition of wings. (See ANGELS.) This word, in the original, is used elsewhere only of the "fiery serpents" (Num. 21:6, 8; Deut. 8:15; comp. Isa. 14:29; 30:6) sent by God as his instruments to inflict on the people the righteous penalty of sin.