Meaning of FLANGE in English

flange /flændʒ/ BrE AmE noun [countable]

[ Date: 1600-1700 ; Origin: Perhaps from early modern French flaunche , from Old French flanc ; ⇨ ↑ flank 1 ]

the flat edge that stands out from an object such as a railway wheel, to keep it in the right position or strengthen it

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.