boustrophedonic
(From the Greek "boustrophe-don": turning like oxen in plowing; from "bous": ox, cow; "strephein": to turn) An ancient method of writing using alternate left-to-right and right-to-left lines. It used for an optimisation performed by some computer typesetting software and moving-head printers to reduce physical movement of the print head. The adverbial form "boustrophedonically" is also found.