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GLOSSARY. 



oyster ; TTOUS, pous, a foot). An 

 order of entomostracous Crustacea, 

 which have the body enclosed in a 

 bivalve shell. 



Otal'gia (Gr. ou?, ous, the ear ; a\yos, 

 algos, pain). Pain in the ear. 



Otic (Gr. ous, ous, the ear). Belong- 

 ing to the ear. 



Oti'tis (Gr. ous, ous, the ear ; itis, 

 denoting inflammation). Inflam- 

 mation of the ear. 



O'tocrane (Gr. ous, ovs, the ear ; Kpa- 

 viov, kranion, the skull). The 

 part of the skull which is modified 

 for the reception of the organ of 

 hearing. 



( toliths (Gr. ous, ous, the ear ; \i6os, 

 lith'os, a stone). Ear-stones ; small 

 masses of carbonate of lime con- 

 tained in the membranous labyrinth 

 of the internal eai*. 



Otorrhe'a (Gr. ous, ous, the ear; 

 /$e, rkeo, I flow). A flow or dis- 

 charge from the ear. 



O'toscope (Gr. ous, ous, the ear; 

 (TKoirfca, skop'eti, I view). An in- 

 strument for listening to the sound 

 passing through the tympanum in 

 diseased states of the ear. 



Otos'teal (Gr. ous, ous, the ear ; 

 bffreov, os'teon, a bone). The ear- 

 bone in the skeleton of fishes. 



Ous. In chemistry, a termination 

 implying that the compound has a 

 smaller quantity of oxygen than 

 that whose name ends in -ic. 



Outcrop. In geology, the edge of an 

 inclined stratum when it comes to 

 the surface of the ground. 



Out' Her. In geology, a patch or mass 

 . of a stratum detached from the 

 main body of the formation to 

 which it belongs. 



Ova (Lat. plural of ovum, an egg). 



Oval (Lat. ovum, an egg). Shaped 

 like an egg. 



O'vary (Lat. ovum, an egg). The 

 organ in animals in which eggs are 

 formed and contained; in plants, 

 the case containing the young seeds, 

 and ultimately becoming the fruit. 



Ovate (Lat. ovum t an egg). In 

 any, like an egg, with the lower 

 d broadest. 



Overshot Wheel. A wheel which is 

 moved by water which flows at its 

 upper part into buckets placed 

 round its circumference. 



Ovicap'sule (Lat. ovum, an egg ; 

 caps' ula, a capsule or casket). The 

 sac which contains the egg. 



O'viduct (Lat. ovum, an egg ; cluco, 

 I lead). A passage which conveys 

 eggs from the ovary. 



Ovig'erous (Lat. ovum, an egg ; ger'o, 

 I carry). Carrying eggs ; applied 

 to receptacles in which, in some 

 animals, eggs are received after 

 being discharged from the ovary. 



O'vifonn (Lat. ovum, an egg ; forma, 

 shape). Like an egg. 



Ovine (Lat. ovis, sheep). Pertaining 

 to sheep. 



Oviparous (Lat. ovum, an egg; par'io, 

 I produce) . Producing eggs ; ap- 

 plied to animals in which the egg 

 is hatched after extrusion from the 

 body. 



Oviposit (Lat. ovum, an egg ; pono, 

 I put). To lay eggs. 



Oviposit'ion (Lat. ovum, an egg ; 

 pono, I put). The laying of eggs. 



Ovipositor (Lat. ovum, an egg ; pono, 

 I put). The organ which transmits 

 eggs to their proper place during 

 exclusion. 



Ovis (Lat., a sheep). The generic 

 term for the animals of which the 

 sheep is the type. 



O'visac (Lat. ovum, an egg ; sac). 

 The cavity in the ovary which 

 contains the ovum. 



O'volo. In architecture, a round 

 moulding, generally the quarter of 

 a circle. 



Ovovivip'arous (Lat. ovum, an egg ; 

 vivus, alive ; par'io, I produce). 

 Hatching young from eggs in the 

 body of the parent, but not in an 

 uterine cavity. 



Ov'ule (Lat. ovum, an egg). A little 

 egg, or seed ; the small body in 

 plants which becomes a seed. 



Ox'alate (Oxal'ic). A salt composed 

 of oxalic acid and a base. 



Oxalic (Lat. ox'alis, sorrel). Per- 

 taining to sorrel : applied to an 

 acid, first obtained from the sorrel, 

 but of very common occurrence. 



