• Webster's Revised Unabridged Dictionary
    • Septfoil (Bot) A European herb, the tormentil. See Tormentil.
    • Septfoil (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.
    • Septfoil (Arch) An ornamental foliation having seven lobes. Cf. Cinquefoil Quarterfoil, and Trefoil.
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Century Dictionary and Cyclopedia
    • n septfoil A plant, Potentilla Tormentilla. See tormentil.
    • n septfoil A figure composed of seven lobes or leaves. Compare cinquefoil, quatrefoil, sexfoil. Specifically A figure of seven equal segments of a circle, used as an ecclesiastical symbol of the seven sacraments, seven gifts of the Holy Spirit, etc.
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Webster's Revised Unabridged Dictionary
F. sept, seven (L. septem,) + E. foil, leaf: cf. L. septifolium,


In literature:

The golden-rod, the water septfoil, and the Lady's mantle, require no searching for.
"Lancashire" by Leo H. (Leo Hartley) Grindon