Dictionary » F » Foil



1. A leaf or very thin sheet of metal; as, brass foil; tin foil; gold foil.

2. A thin leaf of sheet copper silvered and burnished, and afterwards coated with transparent colours mixed with isinglass; employed by jewelers to give colour or brilliancy to pastes and inferior stones.

3. Anything that serves by contrast of colour or quality to adorn or set off another thing to advantage. As she a black silk cap on him began to set, for foil of his milk-white to serve. (Sir P. Sidney) Hector has a foil to set him off. (Broome)

4. A thin coat of tin, with quicksilver, laid on the back of a looking-glass, to cause reflection.

5. The space between the cusps in Gothic architecture; a rounded or leaflike ornament, in windows, niches, etc. A group of foils is called trefoil, quatrefoil, quinquefoil, etc, according to the number of arcs of which it is composed. Foil stone, an imitation of a jewel or precious stone.

Origin: oe. Foil leaf, OF. Foil, fuil, fueil, foille, fueille, f. Feuille, fr. L. Folium, pl. Folia; akin to gr, and perh. To E. Blade. Cf. Foliage, folio.

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Fixing CFSE labeled cells

... / storage affect the signal? And another thing, how sensitive is the CFSE signal to light? Do I have to wrap my 6-wells plate in aluminium foil? greets, Menno

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by BiolMC
Tue Jun 11, 2013 12:34 pm
Forum: Cell Biology
Topic: Fixing CFSE labeled cells
Replies: 0
Views: 1021


... of the angel that appeared on my grilled cheese, but the Illuminati deleted it from my SSD. Brb, building Faraday cage. FYI, I have found tin foil hats to be useful when I venture out of my Faraday cage. They must be grounded, of course. Also, reciting James Joyce's "Finnegan's Wake" ...

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by Rap
Mon Nov 12, 2012 4:23 am
Forum: Evolution
Topic: Civilized man is killed by a gun in the age of dinosaurs
Replies: 10
Views: 5719

Fungus growing on agar plates. contamination??

I always pour from a beaker covered with sterilized foil, with only the mouth uncovered to pour. Do this right after it is done autoclaving. Doing it next to a flame is not enough to keep contamination out of the agar. I also flame the mouth before ...

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by tom1193
Mon Jul 02, 2012 5:50 am
Forum: Microbiology
Topic: Fungus growing on agar plates. contamination??
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Views: 16623

Is Spirulina really good for our health ?

... Testimonial stuff like this (presuming you haven't a financial interest) can be found for any treatment from colloidal gold to conical aluminum foil helmets.

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by JorgeLobo
Tue Apr 24, 2012 8:45 am
Forum: Microbiology
Topic: Is Spirulina really good for our health ?
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Re: hydroxyproline assay to determine collagen content

... are combined and the final volume is brought to 10 ml with distilled water. Make sure the pH is 6.0. Store in the refrigerator with aluminum foil as a cover. Chloramine T solution-2mL (0.05M in DIH2O) + 3mL Cellosolve + 5ml buffer Perchloric Acid (3.15M) p-Dimethylaminobenzaldehyde in cellosolve ...

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by ucsfmed2012
Thu Oct 27, 2011 9:30 am
Forum: Molecular Biology
Topic: hydroxyproline assay to determine collagen content
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