B₃O₁U₁S₁T₁R₁O₁P₃H₄E₁D₂O₁N₁I₁C₃

25 points

BOUSTROPHEDONIC is validvalid

pertaining to boustrophedon [adj]

193,068 of 196,601 in NWL2023·also valid in CSW24

having alternate lines written in opposite directions [adj]

27,543 of 280,887 in CSW24·also valid in NWL2023