pellicle

[pel-i-kuhl]
noun
1.
a thin skin or membrane; film; scum.
2.
Photography. a thin, partially reflective coating, as on a beam splitter or pellicle mirror.

Origin:
1535–45; < Latin pellicul(a), equivalent to pelli(s) skin + -cula -cle1

pellicular [puh-lik-yuh-ler] , pelliculate [puh-lik-yuh-lit, -leyt] , adjective
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World English Dictionary
pellicle (ˈpɛlɪkəl)
 
n
1.  a thin skin or film
2.  the hard protective outer layer of certain protozoans, such as those of the genus Paramecium
3.  botany
 a.  the thin outer layer of a mushroom cap
 b.  a growth on the surface of a liquid culture
4.  photog the thin layer of emulsion covering a plate, film, or paper
 
[C16: via French from Latin pellicula, from pellis skin]
 
pellicular
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

pellicle pel·li·cle (pěl'ĭ-kəl)
n.
A thin skin or film on the surface of a liquid.


pel·lic'u·lar (pə-lĭk'yə-lər) adj.
The American Heritage® Stedman's Medical Dictionary
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