CHR 



224 



CHR 



CnoR'i:i'is'(on, oi, a country place, 

 and iTia-%(xras , a bishop. Country bishops, 

 who were anciently appointed to rural 

 districts. 



CHORIAM'BCS. In poetry, a foot of four 

 syllables, being a trochee (^o^;o;), and 

 iambus united. 



CHO'IUON. The external or involving 

 membrane of the foetus is thus named, 

 from zopov, meaning protection. 



CHOROO'BAPHT, %ooo,, a district, and 

 ygetfu, I describe. The description of a 

 district, in contradistinction to geography 

 and topography. 



CHO ROID, resembling the chorion. Ap- 

 plied to the second tunic of the eye, lying 

 immediately under the sclerotica ; and to 

 a plexus of blood-vessels situated in the 

 lateral ventricles of the brain. 



CHO'RUS, X t>{ot . A band of singers and 

 dancers, who performed in honour of the 

 g_ods, particularly Bacchus. In modern 

 times, it signifies the joint performance 

 of music by the whole orchestra. 



CHO-W'DER-BEER, a drink prepared by 

 'boiling black spruce in water, and adding 

 molasses to the liquor obtained. 



CHREMATIS'TICS, xgitMtrot, wealth, tfce 

 science of wealth. A continental appel- 

 lation. 



CHRESTOM'ATHY, %:rro;, useful, and 

 fjtM.v6o.vta, I learn. Applied to books of 

 extracts, chosen with a view to utility. 



CHRISM, an oil consecrated by the 

 priests of the Greek and Roman Churches, 

 upon Holy Thursday, to be used in the 

 administration of baptism, confirmation, 

 extreme unction, &c. 



CHHIS'TEXDOM comprehends all realms 

 under Christian sovereigns and institu- 

 tions. 



CHRISTIAN KNOWLEDGE, Society for 

 promoting, founded in the year 1699. It 

 has circulated vast quantities of the Bible 

 and Testament, and of the Book of Com- 

 mon Prayer. It is a powerful engine of 

 the Established Church. 



CHROAS'TACES, from %$<>, colour. A 

 name for all those gems which reflect 

 different colours according to their dif- 

 ferent positions. 



CHRO'MATE, a salt formed by the union 

 of the chromic acid with a salifiable 

 base. 



CHROMAT'IC, music which proceeds by 

 several consecutive semitones. 



CHROMAT'ICS, the science of colours, 

 chroma, colour. That part of optics which 

 explains the relations of light and colours. 



CHROME. See CHKOMIL-M. 



CHROME-IRON ORE, a native chromate 

 of iron, or rather a mixture of the oxides 

 of chromium and iron. Its chief use is in 

 the manufacture of chromate of potash. 



CHHOM'IC AC;D. A red or orange co- 



loured powder, of a peculiar rough, 

 metallic taste, is extracted from the red 

 lead-ore of Siberia, by treating it with 

 potash, and separating the alkali. This 

 powder is soluble in water, and crystal- 

 lises into longish prisms of a ruby red 

 colour. This is chromic acid. 



CHRO'MIUM, a metal thus named, from 

 IC^IML, colour, because it is remarkable 

 for giving colour to its combinations. Its 

 principal ore is the red lead ore of Siberia, 

 which is a chromate of lead. It may 

 also be obtained from chrome-iron ore. 



CHRO'SOGRAM, from %fcvos> time, and 

 y^etu-u^t, a letter. An inscription in 

 which a date is given in letters instead of 

 figures. 



CHRONOL'OGY, from %fove>;, time, and 

 M-yo;, discourse. The science of time ; 

 the method of computing it, by marking 

 it off into portions, with appropriate 

 names, and arranging the events and 

 occurrences of history in conformable 

 sequent order. 



CHROXOM'ETER, from %fovof, time, and 

 U=T{V, meaiure. Any instrument that 

 measures time exactly. Many machines 

 for this purpose have been invented under 

 the name of chronometers. 



CHRYSALIS. X'i/ira,Xis. The middle 

 state in which all lepidopterous and most 

 other insects remain for some time, be- 

 tween the caterpillar form and their ap- 

 pearance as perfect insects. See CATER- 

 PILLAR. 



CHRYSAN'THEMCM, a genus of plants of 

 many species, mostly perennials. Synge- 

 nesia Polygamia. Name from %$vfff t 

 gold, and ctvQtf&ov, a flower. The sun- 

 flower or marigold ; great ox-eye daisy or 

 maudlin- wort ; golden lotus, &c., arc 

 species. 



CHRT'SOBER'TL, from %fdfo;, gold, and 

 $riv\\tt>v, a gem ; a mineral ; the cymo- 

 phane of Hatty, and chrysopal of Dela- 

 metherie. Colour, asparagus green ; 

 lustre, vitreous ; fracture, conchoidal ; 

 semitransparent , scratches quartz. Sp. 

 gr. 3'8. Found in Ceylon, in the Brazils, 

 and Siberia. 



CHRT'SOCHE'ORIS, from ^utrtf , gold, and 

 ', to shed. A genus of insectivorous 

 mammalia, whose mode of life is similar 

 to that of the moles. Type the golden 

 mole (C. Asiaticus), smaller than the Euro- 

 pean mole, and the only quadruped that 

 presents any appearance of those splen- 

 did metallic tints which adorn so many 

 birds, fishes, and Insects. Its fur is green, 

 changing to a copper or bronze. 



CHRT'SOCO'MA, the Golden-locks, a genus 

 of plants (exotic). Syngenesia Poly, 

 cequalis. Name from %{t>fos, gold, and 

 *A"S, hair, in allusion to its golden-hair 



