purity

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Purity:

see Pearl, ThePearl, The,
one of four Middle English alliterative poems, all contained in a manuscript of c.1400, composed in the West Midland dialect, almost certainly by the same anonymous author, who flourished c.1370–1390.
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purity

[′pyu̇r·əd·ē]

(chemistry)

The degree to which the content of impurity can be detected by an analytical procedure in a sample of matter that is classified as a pure substance; the grade of purity is in inverse proportion to the amount of impurity present. Also known as chemical purity.

(optics)

The degree to which a primary color is pure and not mixed with the other two primary colors.

Purity

purity

Physics a measure of the amount of a single-frequency colour in a mixture of spectral and achromatic colours

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

References in periodicals archive ?

Kris uses illustrations and lessons from life to provide useful tips on establishing Christian values and higher standards while setting boundaries for maintaining purity.

Purity, The New Moral Revolution

"Purity has been blessed by the long-standing support of Middle Tennesseans, and we remain deeply committed to supporting our community," said Mark Ezell, current president of Purity.

Purity Dairies ice cream production ends

Fathers are key to the purity movement, which, to the outside observer, might seem icky at best and deeply worrying at worst.

We love telly: PICK OF THE DAY - Like a virgin - THE VIRGIN DAUGHTERS C4, 9pm

Originally envisioned as an updated version of the Handbook of Seed Testing (published as Handbook 30 in 1952 by the Agricultural Marketing Service of the US Department of Agriculture), this volume is largely a taxonomically oriented application of purity testing procedures to specific families of seeds.

Seed purity and taxonomy; application of purity testing techniques to specific taxonomical groups of seeds

Tea Purity includes all fittings, tubing and materials for standard hook-up.

Tea Purity provides pure, steam-distilled water

Purity Spring Resort was awarded the "Family Friendly Business Award" by the "Valley Outreach" organization, located in North Conway.

King Pine, Purity receive awards

Until recently, most urea and the infrastructure to manufacture and deliver it has been produced to agricultural industry specifications and is therefore of a lower purity level required for the industrial applications, according to Armstrong.

Exhaust emissions legislation creates opportunity: Industrial Solution Services provides high-purity urea for SCR systems in stationary and mobile applications

ExATH alumina trihydrate products are processed from a high purity feedstock to exacting specifications, according to the literature.

Rubber additives

James Joyce, Sexuality and Social Purity. New York: Cambridge University Press, 2003.

Mullin, Katherine. James Joyce, Sexuality and Social Purity

Simply said, drum magnets can improve ferrous recovery and they also clean the ferrous, improving purity and grade.

Keeping time: scrap metal recyclers' super-sized shredders are being outfitted with oversized drum-separators to help assure purity in the high-volume stream

Petro Canada's Purity FG greases, specialty fluids and lubricants stand up to the toughest food plant conditions.

Petron-Canada: beyond today's standards

The Pura high purity gas dewpoint transmitter is a highly accurate, fast responding dewpoint transmitter.