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A Falchion is a large, single-edged, two-handed sword.
The falchion looks much like a big scimitar with a wide blade curved toward the tip. The blade is one-sided and heavy, weighing as much as some greatswords. The pommel, cross guard, and grip are similar to a bastard sword. An average falchion costs 75gp and weighs 8lbs (3.6kg).
The heavy blade of the falchion gives it an almost axe-like ability to chop through armor and yet retain the advantages of a sword. Its weight requires two hands and special training to wield effectively and is therefore considered a martial weapon.