from
The Collaborative International Dictionary of English v.0.48
Septfoil \Sept"foil\, n. [F. sept seven (L. septem) + E. foil
leaf: cf. L. septifolium.]
1. (Bot.) A European herb, the tormentil. See {Tormentil}.
[1913 Webster]
2. (Arch.) An ornamental foliation having seven lobes. Cf.
{Cinquefoil}, {Quarterfoil}, and {Trefoil}.
[1913 Webster]
3. (Eccl.Art.) A typical figure, consisting of seven equal
segments of a circle, used to denote the gifts of the Holy
Chost, the seven sacraments as recognized by the Roman
Catholic Church, etc. [R.]
[1913 Webster]