folium

[ foh-lee-uhm ]

noun

, plural fo·li·a [foh, -lee-, uh].

1. a thin leaflike stratum or layer; a lamella.
2. Geometry. a loop; part of a curve terminated at both ends by the same node. Equation: x 3 + y 3 = 3 axy.

folium

/ ˈfəʊlɪəm /

noun

1. a plane geometrical curve consisting of a loop whose two ends, intersecting at a node, are asymptotic to the same line. Standard equation: x ³ + y ³=3a xy where x = y +a is the equation of the line
2. any thin leaflike layer, esp of some metamorphic rocks

folium

/ fō′lē-əm /

, Plural folia

1. A thin, leaflike layer or stratum occurring especially in metamorphic rock.
2. A plane cubic curve having a single loop, a node, and two ends asymptotic to the same line.
3. Also called folium of Descartes

Word History and Origins

Origin of folium¹

1840–50; < New Latin, Latin: literally, a leaf

Word History and Origins

Origin of folium¹

C19: from Latin, literally: leaf

Example Sentences

The branches run for some distance parallel to the axis of the folium and terminate in unbranched ends.

From Project Gutenberg

Fibres from white core of folium ending in molecular layer in connexion with the dendrites of the cells of Purkinje.

From Project Gutenberg

In its leaves we have a good example of the folium mucronatum.

From Project Gutenberg

Folia ramorum alterna, diametro unciali, trinervia; petiolo folium subaequanti, basi in stipulam subscariosam adnatam dilatato.

From Project Gutenberg

The plants most limited were Papaveracea, Aconitum folium aconitoideum, Saxif.

From Project Gutenberg