1. A brownish iron sulphide mineral (FeS) having weak magnetic properties
   - pyrrhotite, magnetic pyrites

Derived forms: pyrrhotines

Type of: mineral

• unchristlike
• unchurch
• uncial
• unciform bone
• uncinate
• uncircumcised
• uncivil
• uncivilised
• uncivilized
• uncivilly
• unclad
• unclaimed
• unclasp
• unclassifiable
• unclassified
• uncle
• Uncle Joe
• Uncle Remus
• Uncle Sam
• Uncle Tom
• unclean
• uncleanliness
• uncleanly
• uncleanness
• unclear