D defs.my
Entry 1 sense Webster, 1913

Bridle iron

/brīd'-əl ī'-ẽrn/ · Bri·dle i·ron · IPA
01 A strong flat bar of iron, so bent as to support, as in a stirrup, one end of a floor timber, etc., where no sufficient bearing can be had;…
  1. 1.
    A strong flat bar of iron, so bent as to support, as in a stirrup, one end of a floor timber, etc., where no sufficient bearing can be had; -- called also stirrup and hanger.(Arch.) Also: stirrup, hanger