Prefixes, Suffixes, and Combining Forms - Department of Education ...
Prefixes, Suffixes, and Combining Forms - Department of Education ...
Prefixes, Suffixes, and Combining Forms - Department of Education ...
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oneir- 38<br />
ornith-<br />
specific organic compounds acetone pentanone 5-pyrazolone<br />
2 :chemical compound containing oxygen esp. in a<br />
carbonyl or analogous group as sulfonyl in names <strong>of</strong><br />
classes <strong>of</strong> compounds ketone lactone sulfone 3 :-<br />
oneir- or oneiro- also onir- or oniro- combining form Gk oneir-,<br />
oneiro-, fr. oneiros, oneiron akin to Arm anurǰ dream : dream<br />
oneirology<br />
-onic adj suffix ISV, fr. -onic in gluconic acid : containing<br />
carboxyl esp. when formed by oxidizing the aldehyde group<br />
<strong>of</strong> an aldose sugar aldonicacid hexonicacid lactonic<br />
-onium n suffix - ISV, fr. NL ammonium : an ion having a<br />
positive charge in names <strong>of</strong> complex cations containing<br />
hydrogen or one or more organic radicals coordinated to a<br />
central atom oxonium phosphonium sulfonium compare<br />
- 1b<br />
onomato- combining form LL, fr. Gk, fr. onomat-, onoma<br />
: name : word onomatomania<br />
ont- or onto- combining form NL, fr. LGk onto-, fr. Gk ont-,<br />
n, pres. part. <strong>of</strong> einai to be 1 :being : existence ontic 2<br />
: individual living thing : living organism ontogeny<br />
-ont n combining form - Gk ont-, n, pres. part. <strong>of</strong> einai to be<br />
: cell : organism gamont<br />
onych- or onycho- combining form L onych-, fr. Gk onych-,<br />
onycho-, fr. onych-, onyx : nail <strong>of</strong> the finger or toe onychauxis<br />
: claw Onychophora<br />
-onychia n combining form - NL, fr. onych- + -ia : condition<br />
<strong>of</strong> the nails <strong>of</strong> the fingers or toes leukonychia<br />
-onychium n combining form - NL, fr. Gk onychion little claw<br />
: fingernail : toenail : region <strong>of</strong> the fingernail or toenail<br />
eponychium hyponychium<br />
-onym n combining form - ME -onyme, fr. L -onymum, fr. Gk<br />
-nymon, fr. neut. <strong>of</strong> -nymos, adj. comb. form as in<br />
homnymos having the same name : name : word allonym<br />
hyponym<br />
-onymy n combining form - L -onymia, fr. Gk -nymia, fr.<br />
-nymos as in homnymos + -ia -y 1 :kind <strong>of</strong> name or word<br />
: kind or set <strong>of</strong> names or words hydronymy 2 :study <strong>of</strong> a<br />
specified kind <strong>of</strong> names or words anthroponymy<br />
-onyx n combining form NL, fr. Gk onych-, onyx nail <strong>of</strong> the finger<br />
or toe, claw : one having such nails or claws chiefly<br />
in generic names <strong>of</strong> animals Coleonyx<br />
oophor- or oophoro- combining form NL oophoron : ovary<br />
: ovarian oophorectomy oophorotomy<br />
-ope n combining form - F, fr. LL -op-, -ops having such<br />
eyes, fr. Gk p-, ps eye, face : one having eyes with a specified<br />
defect hypermetrope<br />
operculi- combining form NL operculum : operculum operculiferous<br />
operculiform<br />
ophi- or ophio- combining form Gk, fr. ophis snake 1 :snake<br />
: serpent ophiophagous ophiolatrous 2 a : thing suggesting<br />
a snake ophicalcite b :being or resembling a snake in<br />
respect to a specified structure or quality ophiocephalus<br />
-ophis n combining form Gk ophis snake : snake : serpent <br />
in generic names esp. in herpetology Hydrophis<br />
ophthalm- or ophthalmo- combining form Gk, fr. ophthalmos<br />
eye 1 :eye : eyeball ophthalmotomy ophthalmectomy 2<br />
: <strong>of</strong> or affecting the eyes ophthalmocarcinoma ophthalmalgia<br />
-ophthalma or -ophthalmia n pl combining form -ophthalma,<br />
NL, fr. Gk, neut. pl. <strong>of</strong> adj. comb. form -ophthalmos having a<br />
specified eye, fr. ophthalmos -ophthalmia, NL, fr. Gk ophthalmos<br />
+ NL -ia : ones having a specified eye used in<br />
higher taxa esp. <strong>of</strong> arthropods Edriophthalma<br />
Podophthalmia<br />
-ophthalmia n combining form - NL, fr. Gk, fr. ophthalmos<br />
eye + -ia -y : condition <strong>of</strong> having such eyes microphthalmia<br />
-ophthalmus n combining form NL, fr. Gk -opthalmos, fr. ophthalmos<br />
eye 1 :one having a specified kind <strong>of</strong> eye in<br />
generic names usu. <strong>of</strong> arthropods Megophthalmus 2 -<br />
: eyes <strong>of</strong> a specified form or in a specified state megalophthalmus<br />
-opia n combining form NL, fr. Gk -pia, fr. ps eye, face + -ia<br />
-y 1 also -opy pl -opias also -opies NL -opia a :vision<br />
: condition <strong>of</strong> having such vision diplopia amblyopy b<br />
: possession <strong>of</strong> an eye or eyes with a specified defect<br />
anopia 2 :one having a specified kind <strong>of</strong> eye in generic<br />
names in zoology Heteropia<br />
opio- combining form Gk opion opium : opium opiomania<br />
opiophagous<br />
opisth- or opistho- combining form Gr, fr. opisthen, opithen<br />
behind, in the rear akin to Gk epi on, upon more at -<br />
1:having something specified located dorsally or posteriorly<br />
opisthotic opisth<strong>and</strong>ric 2 : dorsal or posterior<br />
opisthaptor opisthodome<br />
opo- combining form Gk, fr. opos : juice : sap opotherapy<br />
oppositi- combining form L oppositus : situated opposite : having<br />
the corresponding parts opposite oppositifolious<br />
oppositisepalous<br />
-ops n combining form Gk -p-, -ps, fr. p-, ps eye, face 1 pl<br />
-ops or -opses : organism with a specified kind <strong>of</strong> eye or face<br />
chiefly in generic names megalops Stylops Selenops<br />
2 : organism resembling a specified thing in generic<br />
names usu. combined with the names <strong>of</strong> other genera<br />
Echinops Dryobalanops<br />
-opsia or -opsy n combining form, pl -opsias or -opsies -opsia<br />
fr. NL, fr. Gk, fr. opsis appearance, vision + -ia -y -opsy fr. Gk<br />
-opsia more at -opsis : vision <strong>of</strong> a specified kind or condition<br />
anopsia hemiopsia<br />
-opsis n combining form NL, fr. Gk, fr. opsis appearance,<br />
vision 1 a : organism resembling or having a part that resembles<br />
a specified thing in generic names Chilopsis<br />
Ampelopsis b pl -opses : structure resembling a specified<br />
thing caryopsis 2 pl -opses : -<br />
opson- or opsono- combining form opsonin : opsonin opsonic<br />
opsonotherapy opsonophilic<br />
-opsy n combining form - Gk -opsia 1 :- 2 :examination<br />
biopsy<br />
optico- combining form F, fr. Gk optikos 1 : optical <strong>and</strong><br />
opticochemical 2 :relating or belonging to the eye : ocular<br />
opticopupillary 3 : optic <strong>and</strong> supraopticohypophyseal<br />
opticochiasmatic<br />
-opticon n combining form - stereopticon : stereopticon<br />
panopticon sciopticon<br />
opto- combining form Gk optos, verbal <strong>of</strong> opsesthai to be going<br />
to see 1 :vision optometer 2 :eye optoblast optotype<br />
3:optic : optic <strong>and</strong> optokinetic optocoele<br />
-or n suffix - ME -or, -our, fr. OF -eor, -eur L -or OF -eor,<br />
-eur, partly fr. L -or partly fr. L -ator, fr. -atus -ate + -or : one<br />
that does a specified thing grantor alternator occlusor<br />
elevator<br />
-or n suffix - ME -or, -our, fr. OF -eur, fr. L -or : condition<br />
: activity demeanor<br />
ore- or oreo- combining form L, fr. Gk, fr. ore-, oros mountain,<br />
hill : mountain Oreophasis Oreortyx Oreamnos <br />
compare -<br />
-orexia n combining form - NL, fr. Gk orexis desire, appetite,<br />
longing + L -ia -y : desire : appetite cynorexia parorexia<br />
organ- or organo- combining form ME, fr. ML, fr. L organum<br />
1 a : organ organelle organogenesis organonymy b<br />
: organic substance or life organogenic 2 a : organic<br />
: organic <strong>and</strong> organochemical organomineral b<br />
: organometallic organotin organoarsenic organophosphorus<br />
ori- combining form MF, fr. LL, fr. L or-, os mouth 1 :mouth<br />
orifice 2 :mouth <strong>and</strong> orifacial<br />
-orial adj suffix ME -oriale, fr. L -orius -ory + ME -ale -al : <strong>of</strong>,<br />
belonging to, or connected with gressorial insessorial<br />
-orium n suffix, pl -oriums or -oria L, fr. neut. <strong>of</strong> -orius -ory 1<br />
: place for natatorium 2 :thing used for haustorium<br />
-ornis n combining form, pl -ornithes NL, fr. Gk ornis : bird<br />
Heliornis Archaeornithes<br />
ornith- or ornitho- combining form L, fr. Gk, fr. ornith-, ornis<br />
: bird ornithichnite ornithography
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