|the plural of folium|
|—n , pl -lia|
|1.||a plane geometrical curve consisting of a loop whose two ends, intersecting at a node, are asymptotic to the same line. Standard equation: x³ + y³=3axy where x=y+a is the equation of the line|
|2.||any thin leaflike layer, esp of some metamorphic rocks|
|[C19: from Latin, literally: leaf]|
folium fo·li·um (fō'lē-əm)
n. pl. fo·li·a (-lē-ə)
A broad, thin, leaflike structure, as of the cerebellar cortex.