boustrophedon n.
[from a Greek word for turning like an ox while plowing] An
ancient method of writing using alternate left-to-right and
right-to-left lines. This term is actually philologists'
techspeak and typesetters' jargon. Erudite hackers use it for an
optimization performed by some computer typesetting software and
moving-head printers. The adverbial form `boustrophedonically' is
also found (hackers purely love constructions like this).