ARAROBA See also:

• POWDER (through O. Fr. puldre, modern poudre, from Lat. pulvis, pulveris, dust)

POWDER  , a See also:

• DRUG
• DRUG (from Fr. drogue, a word common in Romance languages, cf. Span. and Ital. droga; the origin of the word is obscure, but may possibly be connected with Dutch droog, dry)

drug occurring in the See also:

• FORM (Lat. forma)

form of a yellowish-See also:

• BROWN
• BROWN, CHARLES BROCKDEN (1771-181o)
• BROWN, FORD MADOX (1821-1893)
• BROWN, FRANCIS (1849- )
• BROWN, GEORGE (1818-188o)
• BROWN, HENRY KIRKE (1814-1886)
• BROWN, JACOB (1775–1828)
• BROWN, JOHN (1715–1766)
• BROWN, JOHN (1722-1787)
• BROWN, JOHN (1735–1788)
• BROWN, JOHN (1784–1858)
• BROWN, JOHN (1800-1859)
• BROWN, JOHN (1810—1882)
• BROWN, JOHN GEORGE (1831— )
• BROWN, ROBERT (1773-1858)
• BROWN, SAMUEL MORISON (1817—1856)
• BROWN, SIR GEORGE (1790-1865)
• BROWN, SIR JOHN (1816-1896)
• BROWN, SIR WILLIAM, BART
• BROWN, THOMAS (1663-1704)
• BROWN, THOMAS (1778-1820)
• BROWN, THOMAS EDWARD (1830-1897)
• BROWN, WILLIAM LAURENCE (1755–1830)

brown See also:

• POWDER (through O. Fr. puldre, modern poudre, from Lat. pulvis, pulveris, dust)

powder, varying considerably in tint, which derives an alternative name—See also:

• GOA

Goa powder—from the Portuguese See also:

• COLONY (Lat. colonia, from colonus, a cultivator)

colony of Goa, where it appears to have been introduced about the See also:

• YEAR

year 1852 . The See also:

• TREE (0. Eng. treo, treow, cf. Dan. tree, Swed. Odd, tree, trd, timber; allied forms are found in Russ. drevo, Gr. opus, oak, and 36pv, spear, Welsh derw, Irish darog, oak, and Skr. dare, wood)
• TREE, SIR HERBERT BEERBOHM (1853- )

tree which yields it is the Andira Araroba of the natural See also:

• ORDER
• ORDER (through Fr. ordre, for earlier ordene, from Lat. ordo, ordinis, rank, service, arrangement; the ultimate source is generally taken to be the root seen in Lat. oriri, rise, arise, begin; cf. " origin ")
• ORDER, HOLY

order See also:

• LEGUMINOSAE

Leguminosae . It is met with in See also:

• GREAT

great abundance in certain forests in the See also:

• PROVINCE
• PROVINCE (Lat. provincia; perhaps a contraction of providentia)

province of See also:

• BAHIA

Bahia, preferring as a See also:

• RULE

rule See also:

• LOW, SETH (1850- )
• LOW, WILL HICOK (1853- )

low and humid spots . The tree is from 8o to Too ft. high and has large imparipinnate leaves, the leaflets of which are oblong, about 12 in. See also:

• LONG, GEORGE (1800-1879)
• LONG, JOHN DAVIS (1838– )

long and a in. broad, and somewhat truncate at the See also:

• APEX

apex . The See also:

• FLOWERS, ARTIFICIAL

flowers are papilionaceous, of a See also:

• PURPLE

purple See also:

• COLOUR (Lat. color, connected with celare, to hide, the root meaning, therefore, being that of a covering)

colour and arranged in panicles . The Goa powder or araroba is contained in the See also:

• TRUNK (Fr. tronc, Lat. truncus, cut off, maimed)

trunk, filling crevices in the heartwood . It is a morbid product in the tree, and yields to hot See also:

• CHLOROFORM (trichlor-methane), CHC13

chloroform 5o% of a substance known officially as chrysarobin, which has a definite therapeutic value and is contained in most See also:

• MODERN

modern pharmacopoeias . It occurs as a micro-crystalline, odourless, tasteless powder, very slightly soluble in either See also:

• WATER

water or See also:

• ALCOHOL

alcohol; it also occurs in See also:

• RHUBARB

rhubarb See also:

• ROOT (late O.E. rot, adopted from Scand., cf. Norw. and Swed. rot, Dan. rod; the true O.E. word was wyrt, plant, represented in Ger. Wurz or Wurzel; the ultimate root is the same in both words, and is seen in Lat. radix)
• ROOT, ELIHU (1845– )

root . This complex mixture contains pure chrysarobin (C15H1203), di-chrysarobin methylether (C36H2307.00H3), di-chrysarobin (C30Hu07) . Chrysarobin is a methyl trioxyanthracene and exists as a See also:

• GLUCOSIDE

glucoside in the plant, but is gradually oxidized to chrysophanic See also:

• ACID (from the Lat. root ac-, sharp; acere, to be sour)

acid (a dioxy-methyl See also:

• ANTHRAQUINONE, C14H802

anthraquinone) and See also:

• GLUCOSE (from Gr. - twais, sweet)

glucose . This strikes a See also:

• BLOOD

blood-red colour in alkaline solutions, and may therefore cause much alarm if administered to a patient whose urine is alkaline . The See also:

• BRITISH

British See also:

• PHARMACOPOEIA (lit. the art of the OapµaK07robbs, or drug-compounder)

pharmacopoeia has an ointment containing one See also:

• PART

part of chrysarobin and 24 of benzoated See also:

• LARD (Fr. lard, from Lat. laridum, bacon fat, related to Gr. Naptvos fat, Napos dainty or sweet)

lard .

Both internally and externally the drug is a powerful irritant . The See also:

• GENERAL
• GENERAL (Lat. generalis, of or relating to a genus, kind or class)

general practice amongst modern dermatologists is to use only chrysephanic acid, which may be applied externally and given by the mouth in doses of about one See also:

• GRAIN (derived through the French from Lat. granum, seed, from an Aryan root meaning " to wear down," which also appears in the common Teutonic word " corn ")

grain in cases of See also:

• PSORIASIS

psoriasis and chronic See also:

• ECZEMA (Gr. EKE a, a cutaneous eruption)

eczema . The drug is a feeble parasiticide, and has been used locally in the treatment of See also:

• RINGWORM (or TINEA TONSURANS)

ringworm . It stains the skin—and See also:

• LINEN

linen—a deep yellow or brown, a coloration which may be removed by See also:

• CAUSTIC (Gr. rcavvraubs, burning)

caustic See also:

• ALKALI

alkali in weak See also:

• SOLUTION (from Lat. solvere, to loosen, dissolve)

solution .