flow line

flow line

[′flō ‚līn] (engineering) The connecting line or arrow between symbols on a flow chart or block diagram. Mark on a molded plastic or metal article made by the meeting of two input-flow fronts during molding. Also known as weld line; weld mark. (hydrology) A contour of the water level around a body of water. (petrology) In an igneous rock, any internal structure produced by parallel orientation of crystals, mineral streaks, or inclusions. (petroleum engineering) A pipeline that takes oil from a single well or a series of wells to a gathering center.