OCHLOTIC 



Ochlotic (ok-lot'-ik) [ox/os, crowd]. Same as Ochletic. 



O. Fever. Synonym of Typhus Fever. 

 Ochopetalous [ok-o-pet' -al-us) \o\oq, anything that 

 holds ; ttetoXov, a petal]. In biology, having capacious 

 ' petals. 

 Ochraceous (o-kra' '-se-us) [uxpa, ocher]. Ocher-col- 



ored; yellowish-brown. 

 Ochre (o'-ker). See Ocher. 

 Ochriasis (o-kri' -as-is) [uxpoc, yellow]. Sallowness 



of complexion. 

 Ochrocarpous (o-kro-kar 1 '-pus) [uxpoc, pale-yellow; 



Kap-uc, fruit]. In biology, having yellowish fruit. 

 Ochroid o'-kroid) [uxpa, ocher ; eidoc, form]. Like 



ocher in color. 

 Dchroleukous (o-kro-lu'-kus) [uxpoc , pale-yellow ; 



"Ajeukoc, white]. In biology, yellowish-white. 

 Dchronosis (o-kron'-o-sis) [uxpoc, yellow ; voaoc, dis- 

 ease], A brownish or blackish discoloration of carti- 

 lage and allied structures ; it is probably an intensifi- 

 cation of the pigmentation normally present in these 

 structures, occurring in advanced life. 

 )chropyra (o-kro-pi'-rah) [uxpoc, yellow; Trip, fire]. 



Yellow fever. 

 )chthe (ok' -the) [dx&1, a bank]. The edges of an ulcer. 

 )chthiasis (ok-thi' -as-is). Synonym of Molluscum. 

 )crea (ok'-re-ah) [L., a greave : pi., Ocrece\ In bi- 

 ology, a sheath formed about the stem by one or both 

 stipules. 

 )create (ok' '-re-at)[ocrea, a greave]. In biology, having 



a stipular sheath. 

 )creous (o'-kre-us) [uxpoc, pale]. Resembling ocher. 

 )ctagonal (ok-tag'-o-nal) [oktu, eight; yuvia, an 

 angle]. Having eight sides and angles. 

 )ctamerous (ok-tam' -er-us) [oktu, eight; //£/3O0, part]. 

 • In biology, having the parts in eights. 

 , )ctan [ok' -tan) [oktu, eight]. Returning every eighth 

 ; day, as an octan fever. 

 )ctandrous (ok-tan'-drus) [oktu, eight ; avrjp, a male]. 



In biology, having eight stamens. 

 )ctane (ok' -tan) [oktu, eight], C g H, 8 . The eighth 

 member of the paraffin or marsh-gas series. See Hy- 

 ' dro'carbons, Table of. 

 •ctarius lok-ta'-re-us) [oktu, eight]. An eighth part 



gallon. One pint. Symbol O. 

 ctaVwS humeri (ok-ta'-vus-hu'-mer-i). Synonym 

 of Teres minor. See Muscles, Table of. 

 cto- (ok'-to-) [oktu, eight]. A prefix denoting refer- 

 ence to the number eight. # 

 ctoblast (ok' '-to-blast) [oktu, eight; fi?MGT6g, germ]. 

 In biology, the eight-celled stage of a segmenting 

 ovum. 



ctobrachiate (ok-to-bra'-ke-dt) [oktu, eight ; /Jpa^/wv, 

 the arm]. In biology, having eight tentacles, rays, 

 arms or brachia. 



ctocerous (ok-tos' -er-us) [oktu, eight; icepac, a horn]. 

 In biology, having eight horns, tentacles, rays or arms, 

 ctocotyloid (ok-to-kof '-il-oid) [oktu, eight ; kotv'/jj, a 

 hollow ; eldoc, form]. In biology, having eight fos- 



• or bothria. 

 :togynous (ok-toj' -in-us) [iwru, eight ; ywrj, a 



In biology, having eight pistils. 

 :tolocular (ok-to-lok' -u-lar) [oktu, eight ; loculus, 

 dim. of locus, a place, cell]. In biology, having eight 

 : cells. 



:tonemal, Octonematous (ok-to-ne'-mal,ok-to-nem'- 

 at-us) [oktu, eight; rfjua. thread]. In biology, hav- 

 mg eight filamentous organs or appendages. 

 :tonocular (ok-ton-ok' '-u-lar) [oktu, eight ; oculus, 

 ye]. In biology-, eight-eyed. 



:toped, Octopede (ok'-'to-ped, ok'-to-ped) [oktu, 

 sight; pes, foot]. In biology, an eight-footed 

 :reature. 



885 OCULAR 



Octopetalous (ok-to-pef -al-us) [oktu, eight ; ■KtTa7jov, 

 a leaf]. In biology, having eight petals. 



Octophthalmous ( ok - toff- thai'- mus ) [oktu, eight ; 

 bofta/.uoc, eye]. In biology, having eight eyes. 



Octophyllous (ok-to-fii'-us) [oktu, eight; ai/./utv, a 

 leaf]. In biology, having eight leaflets. 



Octoradial (ok-to-ra' '-deal ) [oktu, eight; radius, ray]. 

 Same as Octoradiate. 



Octoradiate (ok-to-ra' -de-dt) [oktu, eight ; radius, ray]. 

 In biology, having eight rays. 



Octoroon (ok-tor-oan') [oktu, eight]. The offspring of 

 a white person and a quadroon. 



Octosepalous (ok-to-sep/ -al-us) [oktu, eight ; sepalum, a 

 sepal]. In biology, having eight sepals. 



Octoses (ok'-to-sez) [oktu, eight]. A group of the 

 glucoses with the formula C 8 H 16 8 . See Carbo- 

 hydrates, Table of. 



Octospermous (ok-to-sper 1 '-mus) [oktu, eight; a~ipfta, 

 seed]. In biology, producing eight seeds. 



Octospore (ok'-to-spor) [oktu, eight; c-opaq, seed]. 

 In biology, a spore from many fungi and lichens, 

 the asci of which produce eight spores each. 



Octostichous (ok-tos' -tik-us) [oktu, eight; crrixor, line, 

 row]. In biology, eight ranked. 



Octylene (ok'-til-en) [oktu, eight], C g H 16 . A colorless 

 liquid derived from octane. 



Ocular (ok' -u-lar) [oculus, the eye]. I. Pertaining to 

 the eye. 2. An optic combination that refracts the 

 diverging rays forming the real object-image so that 

 they may pass through the pupil of the observer's 

 eye ; the eye-piece of a compound miscroscope. Like 

 the simple microscope, it also forms a virtual or 

 magnified image of the real image. O., Cam- 

 pani's. See O., Huygenian. O. Cleft. See Cleft. 

 O., Compensating, an ocular specially constructed 

 for use with the apochromatic objective. It serves to 

 correct or compensate for aberrations in the ob- 

 jective outside the axis. O. Cup. See Optic. O., 

 Erecting, one that is provided with an erecting 

 prism and gives an erect image of the object. O., 

 Huygenian, one that consists of two plano-convex 

 lenses, the convexities being directed toward the ob- 

 jective. The lower and larger lens is the field-lens ; 

 the upper and smaller is the eye-lens. O., Kellner's. 

 See O., Orthoscopic. O., Micrometer, is an ocular 

 with which is connected a micrometer for the pur- 

 pose of measuring the real image of the object. 

 O. Micrometer Ratio. See Ratio. O. Muscles, 

 External, the six muscles moving the globe of the 

 eye. See Muscles, Table of. O. Muscles, Inter- 

 nal, the ciliary muscle and the iris. O., Negative, an 

 ocular in which the real image formed by the objec- 

 tive lies somewhere between the two lenses or lens- 

 systems forming the ocular. O., Orthoscopic, one 

 that consists of a bi-convex field-glass and an achro- 

 matic double meniscus (bi-convex and bi-concave) 

 eye-lens. Os., Parfocal, oculars of different powers 

 which may be interchanged without putting the image 

 wholly out of focus. O., Periscopic [-spi, around ; 

 oko-fIv, to look] ; a positive ocular devised by 

 Gundlach ; it has a double convex field-lens and a 

 triplet eye-lens. O., Positive, one through which 

 the real image is formed outside of the ocular, and 

 is magnified by the entire system of ocular lenses 

 like a simple microscope. O., Projection, an ocular 

 especially designed for projecting the image formed 

 by an objective on a screen for class-demonstration, 

 or for photography. O., Ramsden's, an ocular con- 

 sisting of two plano-convex lenses with their convex 

 surfaces facing each other. It has been used in mi- 

 crometry. O., Searching, an ocular of low power 

 used for finding an object. It consists of a single 



