folium

[ foh-lee-uhm ]

/ ˈfoʊ li əm /

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noun, plural fo·li·a

[foh-lee-uh]. /ˈfoʊ li ə/.

a thin leaflike stratum or layer; a lamella.

Geometry. a loop; part of a curve terminated at both ends by the same node. Equation: x3 + y3 = 3axy.

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Origin of folium

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

Words nearby folium

foliole, folio recto, foliose, -folious, folio verso, folium, folivore, folk, folk art, folk dance, Folkestone

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use folium in a sentence

The branches run for some distance parallel to the axis of the folium and terminate in unbranched ends.
Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4|Various
Fibres from white core of folium ending in molecular layer in connexion with the dendrites of the cells of Purkinje.
Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 4|Various
In its leaves we have a good example of the folium mucronatum.
The Botanical Magazine, Vol. 13|William Curtis
Folia ramorum alterna, diametro unciali, trinervia; petiolo folium subaequanti, basi in stipulam subscariosam adnatam dilatato.
Expedition into Central Australia|Charles Sturt

The plants most limited were Papaveracea, Aconitum folium aconitoideum, Saxif.
Journals of Travels in Assam, Burma, Bhootan, Afghanistan and The|William Griffith

British Dictionary definitions for folium

folium

/ (ˈfəʊlɪəm) /

noun plural -lia (-lɪə)

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

any thin leaflike layer, esp of some metamorphic rocks

Word Origin for folium

C19: from Latin, literally: leaf

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for folium

folium

[ fō′lē-əm ]

Plural folia

A thin, leaflike layer or stratum occurring especially in metamorphic rock.

A plane cubic curve having a single loop, a node, and two ends asymptotic to the same line. Also called folium of Descartes