10Q 



A GLOSSARY OF TERMS 



circular, bony cavities in which 

 the organs of vision are lodged, 

 are named the orbits. 



OR'BITAL. ) Belonging or relating to 



OR'BITAR. the orbit. 



ORCHID'EOUS. Relating to the genus 

 orchis. 



OH'CHIS. A genus of plants of the 

 family of orchid'ese, named from 

 most of the species being marked 

 by two tubercles. 



ORDER. An arrangement, disposi- 

 tion. The first subdivision of a 

 class. 



ORDINA'RIA. Lat. Ordinary, com- 

 mon. 



ORES. fr. ger. erze. Mineral bodies 

 from which metals are extracted. 



OREILLARD. Fr. Having long ears. 

 The name of a kind of bat. 



ORGAN. fr. gr. organon, an instru- 

 ment. Part of an organized be- 

 ing, destined to perform some par- 

 ticular function ; the ears are or- 

 gans of hearing, the muscles or- 

 gans of motion, &c. 



ORGA'NIC. Relating to an organ. 

 Organic remains, are the fossil re- 

 mains of organized beings. 



ORGA'NISANS. Lat. fr. gr. organoo, 

 I arrange, or provide with organs. 

 Organizing, constructing. 



OR'GANISM. The arrangement of 

 organs; the assemblage of their 

 different functions. 



ORGANIZA'TION. The mode or man- 

 ner of structure of an organized 

 being. 



OR'GANISED. Composed of organs ; 

 having a mode of structure. 



ORGANO'GRAPHY. fr. gr. organon, an 

 organ; grapho, I describe. A de- 

 scription of the structure of plants. 



ORIO'LUS. fr. lat. aureolus, of the 

 colour of gold. Systematic name 

 of the orioles. A genus of birds. 



ORTSMO'LOGY. fr. gr. orismos, term ; 

 logos, a discourse. Nomenclature; 

 terminology. 



ORNITHOLOGY. fr. gr. ornis, ornitkos, 

 a bird ; logos, a discourse. The 

 natural history of birds. 



ORNITHORYN'CHITS. fr. gr. ornis, or- 

 nithos, a bird ; rugchos, a beak. A 

 genus of mammals, having the 

 beak of a duck. 



O'RNUS. Lat. A wild ash. 



ORO'LOGY. fr. gr. oros, a mountain ; 

 logos, discourse. That branch of 

 geology which treats of the struc- 

 ture of mountains. 



ORTHOP'TERA. fr. gr. orthos, straight ; 

 pteron, wing. An order of insects. 



ORTHOP'TERJE. Lat. plur. of orthop'- 

 tera. 



ORTHOTRO'POTJS. fr. gr. orthos, 



straight; trepo, to turn. Applied 

 to the ovule in plants, because it 

 is not turned from its original di- 

 rection. 



ORTHIS. A genus of fossil bivalve 

 shells, (p. 29, Book viii). 



ORTHOCE'RAS. ) fr. gr. orthos, 



ORTHO'CERATITE. straight; ke- 

 ras, horn. An extinct genus of 

 cephalopods. (p. 38, Book viii). 



OR'TYX. fr. gr. ortux, a quail. Sys- 

 tematic name of a kind of par- 

 tridge. 



ORYCTO'GTTOSY. fr. gr. oruktos, dug 

 up ; gnosis, knowledge. Orycto- 

 logy. That branch of science 

 which treats of fossil organic re- 

 mains. 



ORYZIVO'RA. ) fr. gr. oruza, rice, 



ORYZIVO'RUS. and the Lat. vorare, 

 to eat. Specific names of certain 

 buntings. 



ORY'ZA. Lat. Rice. 



Os. Lat. Bone. 



OSCIZLA'TION. fr. lat. oscillum, an 

 image, hung on ropes and swung 

 up and down in the air. The 

 act of moving backwards and 

 forwards like a pendulum. 



OsciLLA'xoRY.-Swinging backwards 

 and forwards like a pendulum. 



OSME'HUS. Generic name of the 

 smelt. 



OS'SEOUS. fr. lat. os, bone. Bony, 

 composed of bone. Osseous brec- 

 cia is any cemented mass of frag- 

 ments of bones of extinct animals, 

 found in caverns and fissures. 



