A blunt, elastic, sword-like implement used in fencing.
♦ To foil means to disconcert or defeat an enemy's intention.
·noun The track or trail of an <<Animal>>. II. Foil ·vt To tread under foot; to <<Trample>>. III. ...
Webster's Dictionary of the English Language
·noun An aquatic plant (Hottonia palustris), having finely divided leaves. ...
·- The water violet (Hottonia palustris); also, the less showy American plant H. inflata. ...