'FeS' definitions:

Definition of 'Fes'

(from WordNet)

noun

A city in north central Morocco; religious center [syn: Fez, Fes]

Definition of 'FeS'

From: GCIDE

Troilite \Tro"i*lite\, n. [Named after Dominico Troili, an Italian of the 18th century.] (Min.) Native iron protosulphide, FeS. It is known only in meteoric irons, and is usually in imbedded nodular masses of a bronze color. [1913 Webster]

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