[foh-lee-uhm] .
noun, plural folia [foh-lee-uh] .
a thin leaflike stratum or layer; a lamella.
Geometry. a loop; part of a curve terminated at both ends by the same node. Equation: x 3 + y 3 = 3 axy.

1840–50; < Neo-Latin, Latin: literally, a leaf Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
folium (ˈfəʊlɪəm)
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]

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American Heritage
Medical Dictionary

folium fo·li·um (fō'lē-əm)
n. pl. fo·li·a (-lē-ə)
A broad, thin, leaflike structure, as of the cerebellar cortex.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
folium   (fō'lē-əm)  Pronunciation Key 
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. Also called folium of Descartes.

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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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