Lentoid

Lentoid

Lentoid is a geometric shape of a three dimensional body, best described as a circle viewed from one direction and a convex lens viewed from an orthogonal direction. The term is most often used in describing jewelry and cellular phenomena in microbiology.

In history

Since ancient times, the lentoid shape has been used to fashion jewelry and seals for identification made from a variety of stones and metals. In Minoan Crete, for example, seals have been found with complex carving on lentoid stones. [ [http://www.metmuseum.org/toah/ho/03/eus/ho_14.104.1.htm Timeline of Art History: Lentoid seal with a griffin, Minoan Crete] ] The lentoid shape was one of the most commonly recovered seal shapes from Minoan Knossos on Crete dating to the Bronze Age, as evidenced by the finds at that Bronze Age palace. [ [http://letmespeaktothedriver.com/site/10854/knossos.html#fieldnotes C. Michael Hogan, "Knossos fieldnotes", Modern Antiquarian (2007)] ]

ee also

*Disc
*Oblate sphere
*Spheroid

References


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Look at other dictionaries:

  • Lentoid — Len toid (l[e^]n toid), a. [Lens + oid.] Having the form of a lens; lens shaped. [1913 Webster] …   The Collaborative International Dictionary of English

  • lentoid — [len′toid΄] adj. [< L lens (gen. lentis): see LENS & OID] lens shaped …   English World dictionary

  • lentoid — /len toyd/, adj. 1. having the shape of a biconvex lens. n. 2. a lentoid body. [1875 80; < L lent (s. of lens) lentil (see LENS) + OID] * * * …   Universalium

  • lentoid — len•toid [[t]ˈlɛn tɔɪd[/t]] adj. 1) opt having the shape of a biconvex lens 2) a lentoid body • Etymology: 1875–80; < L lent , s. of lēns lentil (see lens) …   From formal English to slang

  • lentoid — Spherical cluster of retinal cells, formed by aggregation in vitro, that has a core of lens like cells inside which accumulate proteins characteristic of normal lens. The cells concerned derive from retinal glial cells …   Dictionary of molecular biology

  • lentoid — adj. lens shaped, resembling a lens with two convex sides …   English contemporary dictionary

  • lentoid — [ lɛntɔɪd] adjective another term for lenticular (in sense 1). Origin C19: from L. lens, lent lentil + oid …   English new terms dictionary

  • lentoid — len·toid …   English syllables

  • lentoid — /ˈlɛntɔɪd/ (say lentoyd) adjective having the shape of a biconvex lens. {Latin lent , stem of lens + oid} …  

  • lentoid —   a. lens shaped …   Dictionary of difficult words

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