01 n. A leaf, esp. a thin leaf or plate.
pl.
Foliums, Folia ((#))
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1.
A leaf, esp. a thin leaf or plate.
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2.
A curve of the third order, consisting of two infinite branches, which have a common asymptote. The curve has a double point, and a leaf-shaped loop; whence the name. Its equation is x3 + y3 = axy.(Geom.)