OBV 



285 



ODO 



bvolute, a., tib'-vdl-dt (L. obvol- 

 utus, wrapped round from ob, 

 around ; volvo, I roll), in bot., 

 having the margins of one leaf 

 alternately overlapping those of 

 the leaf opposite to it. 

 ccipitalis major, ftc-ttip'-lt-aX-lB 

 mddf-or (L. occipitdlis, pert, to 

 the occiput or back part of the 

 head ; major, greater), the in- 

 ternal branch of the posterior 

 cord of the second cervical nerve : 

 occipitalis minor, min'-or (L. 

 minor, less), a superficial ascend- 

 ing branch of the cervical plexus : 

 occipito-frontalis, fronts-Is (L. 

 frontdlis, pert, to the forehead 

 from /rows, the forehead, frontis, 

 of the forehead), in anat., applied 

 to a pair of occipital, and a pair 

 of frontal muscles, together with 

 a thin aponeurosis, extending 

 over the cranium, by the con- 

 traction of which the scalp is 

 drawn backwards and the eye- 

 brows elevated. 



xiciput, n., ok'-sip-ut (L. occiput, 

 the back part of the head from 

 ob, against ; caput, the head), 

 the bone forming the back part 

 of the skull ; the hinder part of 

 the head or skull the opposite 

 part being named the sinciput : 

 occipital, a., ftk-sip'-it-al, pert, to 

 or connected with the back part 

 of the skull. 



ocellated, a., os-Zl'-lat-td (L. 

 ocellus, a little eye from oculus, 

 an eye), in bot., having a broad 

 round spot of one colour, with 

 the spot of a different colour in 

 the centre: ocelli, n. plu., 6s- 

 $l'-li, in zool, the simple eyes of 

 many echinoderms, such as 

 Spiders, Crustaceans, and Mol- 

 luscs. 



Ochnacese, n. plu., ok-naf-sZ-e (Gr. 

 ochne, a wild pear), the Ochna 

 family, an Order of plants, 

 generally bitter, some used as 

 tonics: Ochna, n., ok'-na, a genus 

 of very ornamental plants, re- 

 markable for the large succulent 



prolongation of the receptacle to 



which the carpels are attached. 



ochrea, n., also ocrea, n., dk'-re-d 

 (L. ocrea, a covering to protect the 

 legs, a boot), in bot., a tubular 

 membranous stipule through 

 which the stem seems to pass, as 

 in Polygonacese : ochreate, a., 

 tik'-re-dt, sheathed after the man- 

 ner of a boot. 



ochroleucous, a., okf-ro-l6k'-us (L. 

 ochra, ochre ; L. leucos, Gr. 

 leukos, white), in bot., of a pale 

 ochre colour. 



octandrous, a., tik-tand'-rtis (Gr. 

 okto, L. octo, eight ; Gr. aner, a 

 male, andros, of a male), in bot. , 

 having eight stamens. 



octogynous, a., dk-tddj'm-us (L. 

 octo, Gr. okto, eight ; Gr. gune, 

 a female), having eight styles. 



octopod, n., ok'td'pod, octopoda, 

 n. plu., tik-top'-od-a (L. octo, Gr. 

 okto, eight ; pous, a foot, podes, 

 feet), the tribe of cuttle-fishes 

 with eight arms attached to the 

 head ; a Crustacean or insect hav- 

 ing eight feet or legs. 



octosporous, a., ok'-to-spor'-us or 

 6k-t6s f - (L. octo, Gr. okto, eight ; 

 spora, seed), in bot., eight-spored. 



oculus, n., ok'-ul-us (L. oculus, an 

 eye), in bot., an eye ; a leaf bud : 

 oculist, n., ok'-ul-lst, a surgeon 

 who practises only in diseases of 

 the eye. 



Ocymum, n., tis'-im-tim (L. ocym- 

 um, Gr. okimon, the plant 

 Basil), a genus of plants, Ord. 

 Labiate, the Lamiacese of Lind- 

 ley ; the plant Basil, used as a 

 culinary vegetable, and to flavour 

 dishes. 



odontalgia, n., 8d'o'nt-alj f -i-a (Gr. 

 odous, a tooth, odontos, of a 

 tooth ; algos, pain), toothache : 

 odontalgic, a., od'-ont-alj'-lk, 

 pert, to toothache : n. , a remedy 

 for toothache : odontology, n. , 

 od f -$nt-$l r -o-ji (Gr. logos, dis- 

 course), that branch of anatomy 

 which treats of teeth. 



Odontoceti, n. plu., $d'8nt'-d-set'-l 



