Barrer

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Barrer 

A unit of oxygen permeability of a contact lens material. Symbol: Dk. It is equal to the product of the diffusion coefficient D of oxygen through the material (i.e. the speed at which oxygen molecules pass through the material) and the solubility k of oxygen in the material (i.e. the number of oxygen molecules that can be absorbed in a given volume of material). See oxygen permeability; oxygen trans-missibility.
References in classic literature ?
On approaching an outpost near the Barriere des Sergens, the sentinel cried out, "Who's there?
Come, Guitant, come along, and let's see if they keep watch at the Quinze-Vingts as at the Barriere des Sergens.
At two o'clock in the morning, our four adventurers left Paris by the Barriere St.
He knew, that I should arrive to-day at ten o'clock; he was waiting for me at nine at the Barriere de Fontainebleau.
They went to live, like dove-turtles, near the barriere de Courcelles, in a little apartment at three hundred francs a year, with white cotton curtains to the windows, a Scotch paper costing fifteen sous a roll on the walls, brick floors well polished, walnut furniture in the parlor, and a tiny kitchen that was very clean.
We went through the formalities of the custom-houses, or barrieres, the same day, and the next morning we were all transferred to a celebrated shop that dealt in articles of our genus.
Picardie = province of France, north of Evreux; barrieres = gates at the edge of Paris, where local customs duties were collected; magazin = shop; fiacre = a kind of carriage; Douane = customs house; confidential commissionaire = special messenger}
Contact point(s): Vincent Paulet / Fabien Barriere (Service maintenance du patrimoine)
Grounded Authority: The Algonquins of Barriere Lake Against the State
Lorsque les fanatiques detruisent Palmyre ou les manuscrits de Tombouctou, souvenons-nous qu'Abdelkader sauvegardait tous les manuscrits qu'il pouvait [beaucoup plus grand que], a indique Loic Barriere dont son ouvrage vient de sortir chez Les Points sur les i Editions.
Goji, the nation's largest online, independent auto insurance agency, announced the appointment of Erin Barriere as vice president of Human Resources.
It was 2009, at Pentecost in May--we decided we would join services [at Barriere United Church] for the summer and see how it went," Farquharson said.