ODO 



286 



on> 



(Gr. odous, a tooth, odontos, of a 

 tooth; Jcetos, a whale), the toothed 

 whales, as distinguished from 

 the whalebone whales* 



Ddontoid, a., 8d>ontfo$d (Gr. 

 odous, a tooth, odontos, of a 

 tooth ; eidos, resemblance), hav- 

 ing the appearance of teeth ; 

 tooth -like ; in anat., applied to 

 a 'process/ tooth-like in shape, 

 which forms the centrum or body 

 of the first cervical vertebra (atlas), 

 and springs from the second (axis). 



odontophore, n., od- tint' o -for (Gr. 

 odous, a tooth, odontos, of a 

 tooth ; phoreo, I bear), the 

 tongue or masticatory apparatus 

 of Gasteropoda and Pteropoda, 

 etc. 



oedema, n., ed-em'a (Gr. oideo, I 

 swell ; oidema, a swelling), the 

 swelling caused by effusion of 

 serous or inflammatory fluid into 

 the loose areolar tissue lying 

 under the skin or mucous mem- 

 brane : cedematoid, a., ed-emf-dt- 

 oyd (Gr. eidos, resemblance), 

 resembling cedema. 



(Edogonium, n., ed'o>gon'i>um, 

 CEdogonia, n. plu., ed'-o-gon'i'ci 

 (Gr. oideo, I swell ; gonos, off- 

 spring alluding to the mode of 

 reproduction), a genus of minute 

 Algae, in which the greater part 

 of the cells contain each a zoo- 

 spore, provided anteriorly with a 

 complete crown of cilia, and pro- 

 duced without sexual intercourse, 

 the zoospore germinating and 

 giving rise to a new plant in the 

 same way as a bud does : CEdo- 

 gonium ciliatum, sil'i-dtf-um (L. 

 ciliatum, having an eyelash 

 from cillum, an eyelash), a species 

 found attached to the leaves of 

 aquatic mosses. 



(Enanthe, n., en-anth'-e' (Gr. oinos, 

 wine; anthos, a flower so named 

 from its odour), a genus of plants, 

 Ord. Umbelliferse : (Enanthe 

 crocata, krdk-dtf-a (L. crdcdtus, 

 saffron yellow from crocus, 

 saffron), a poisonous species 



called Hemlock-dropwort or Dead- 

 tongue : <E. phellandrium, fel- 

 land<ri-um (Gr. and L. phelland- 

 rwn, a plant with leaves like ivy), 

 a species called Water-drop having 

 poisonous properties : cenanthic, 

 a. , eU'tinth'-ik, designating a pecul- 

 iar principle which gives wine 

 its distinguishing aroma. 



(Enothera, n., en'-oth-er'-a (Gr. 

 oinos, wine ; thera, a hunting, a 

 search after), a genus of plants, 

 Ord. Onagracese ; the Evening 

 Primrose, a genus of truly beauti- 

 ful plants : (Enothera biennis, 

 bi-$n'ms (L. biennis, biennial 

 from bis, twice ; annus, a year), . 

 a species having edible roots, 

 formerly eaten after meals as an 

 incentive to wine-drinking. 



oesophagus, n., es-dj'ag-us (Gr. 

 oisophagos, the gullet from oio } 

 I bear or carry for another ; 

 phago, I eat), the canal through 

 which food and drink pass to the 

 stomach ; the gullet also spelt 

 esophagus : cesophagalgia, n. , 

 es-of'-ag-alf-i-a (Gr. algos, pain, 

 grief), pain ef the resophagus : 

 cesophagitis, n., es-of-ddj-ltf-is 

 (itis, inflammation), inflammation 

 of the oesophagus: cesophagotomy, 

 n., es-df-ag-dt'-dm-t (Gr. tome, a 

 cutting), the operation of making 

 an opening into the oesophagus : 

 cesophageal, a., es-of'-ddj-e'dl, 

 connected with 1 the oesophagus. 



officinal, a., of-fis'-in-al (L. o/ic- 

 mdlis, officinal, by authority- 

 from officlna, B, workshop), sold 

 in the shops ; applied to medic- 

 ines or medicinal preparations, 

 always kept ready for use by 

 druggists, prepared, and of the 

 strength as directed by the 

 College of Physicians. 



Oidium, n., d'td'-i-um or oyd'i'um 

 (Gr. oideo, I swell up), an extens- 

 ive genus of Fungi forming num- 

 erous moulds, consisting of minute 

 interlacing filaments which cover 

 a surface as if with a white down, 

 as on bread, cheese, preserves, 



