D defs.my
Entry 1 sense Webster, 1913

Two-way

/to͞ow'-āˌ/ · Two·-way · IPA /ˈtu.weɪ/
01 a. Serving to connect at will one pipe or channel with either of two others; as, a two-way cock.
  1. 1.
    Serving to connect at will one pipe or channel with either of two others; as, a two-way cock.(Pipe Fitting)