The upper or delivery end of a feed mill, funnel, or conveyor system where material enters the machinery.
From 'feed' plus 'head' (Old English 'hēafod'), a compound term from industrial milling and grain processing terminology describing the inlet or source point of the system.
Industrial and mechanical terminology often uses 'head' to mean the source or inlet (as in 'wellhead,' 'riverhead'), while 'tail' means the exit—it's a metaphorical extension from body parts that feels so natural we rarely notice it's metaphorical.
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