emery

& a. [Fr. emeri; Sp. & Port. esmeril; Ital. smeriglio, from Gr. smyris, smir is =emery.] A. As substantive: Min .: A variety of Corundum (q. v.). It is granular in texture, and black or grayish-black in color. It is found in the islands of the Greek Archipelago and in Asia Minor, at Chester, Ma ., and elsewhere in this country, and in England. In the state of powder it is extensively used for polishing hard substances. 3. Printed with the type called emerald: as, an emerald edition. Oriental emerald : Min.: A green variety of sapphire. emerald-copper, s. Min.: The same as DIOPTASE (q. v.). emerald-green, s. Chemistry: Schweinfurt green (CnAs2O4)3 Cn (C2H2O)2. A cupric arsenite and acetate, containing when pure 584 per cent of arsenious acid, and 25 per cent of copper. It is a rich green pigment, but very poisonous. Prepared by di olving five pounds of cupric sulphate and one pou id of lime in two gallons of vinegar, and pouring a boiling aqueous solution of five pounds of arsenious acid into the mixture gradually while it is well stirred. The precipitate is then dried and powdered. 3. A pre ing nece ity; an exigency; a critical moment; a combination of circumstances requiring immediate action or remedy; a crisis. "He never, in any emergency , lost, even for a moment, the perfect use of his admirable judgment." -Macaulay : Hist. Eng ., iv. *4. A casual profit. "The rents, profits, and emergencies belonging to a Bishop of Bath and Wells." -Heylin : Life of Laud , p. 159. For the difference between emergency and exi gency , seo EXIGENCY. ě-mer-gent, a . . [Lat. emergens . pr. par. of emergo to emerge.] A. As adjective : 1. Rising up out of a fluid or other surrounding or covering substance; rising into view. "Immediately the mountains huge appear Emergent." Milton: P. L. , vii. 286. B. As adj .: Consisting of emery, pertaining to emery-cloth, s. Cloth brushed with liquid glue, and dusted with powdered emery. emery-grinder, s. An emery-wheel mounted in a stand, to be used as a grindstone. emery-paper, s. Paper brushed with liquid glue and dusted with emery of the required grade of finene .