Definitions
1.NounA simple iron (for pressing laundry) which is heated on a stove.
2.NounA pair of metal tongs with heated ceramic plates used for straightening hair.
3.Nouna quadrilateral with two parallel sides, one of which is very short, and whose non-parallel sides are longer than either parallel side.
4.NounA steeply sloping triangular landform created by the differential erosion of a steeply dipping, erosion-resistant layer of rock overlying softer strata.
5.NounEllipsis of flat iron steak.
6.AdjectiveHaving a flatiron shape."a flatiron building"