Definify.com
Webster 1913 Edition
Folium
Fo′li-um
,Noun.
pl. E.
Foliums
(#)
, L. Folia
(#)
. [L., a leaf.]
1.
A leaf, esp. a thin leaf or plate.
2.
(Geom.)
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
x
. 3
+ y3
= axy