PREFIXES. 477 



neo-, ne'-o (Gr. n%8s, new), recent ; new ; as neoplasm, a new formation 



or growth. 

 nitro-, nit'rd, and nitr-, nlt'r (Gr. nttrtin, L. nttrum, a mineral alkali), 



denoting the presence of nitre, or nitric acid ; as m^Hfication, the 



process of converting into nitre. 



non-, non (L.), not ; reversing the sense ; as wow-ability, want of ability. 

 ob, with its forms oc, of, o, op (L.), in the way of; against; out : 



ODJect, something cast in the way of ; o&solete, grown out of use : ob 



becomes oc before c, as in occasion, a falling in the way of : of 



before f, as in o/fend, to strike against : o before in, as in omit, to 



leave out : op before p, as in oppose, to place against : in bot. t 



reversed, or contrariwise, as o&compressed, flattened in front and 



behind, not laterally ; ooovate, inversely ovate. 

 occipito-, ok'Sip'-it-o (L. occiput, the back part of the head), denoting 



connection with the occipital bone, or 'os occipitis' ; as occipifo-front- 



alis, a thin, flat muscle which arises from the transverse ridge of the 



occipital bone. 

 oleo-, oZ-e-o(L. oleum, oil), combined with oil, or containing it; as oleo- 



albuminous, consisting of oil and albumen. 



omo-, ora'o (Gr. oraos, a shoulder), denoting attachment to, or connec- 

 tion with, the scapula ; as omo-nyoid, denoting a muscle between the 



scapula and the hyoid bone. 

 ortho-, orthf-d (Gr. ortlios, straight), straight ; upright ; as ortfAopncea, 



inability to breathe except in the upright position. 

 osteo-, ost'e'6 (Gr. osteon, a bone), denoting connection with, or reference 



to, a bone ; as osteo-dentine, a substance intermediate in structure 



between dentine and bone. 

 oxy-, oks'-i (Gr. oxus, sour, acid), denoting the presence of oxygen or an 



acid ; acute ; sharp : also assumes the forms oxi and oxu : as oxymel, 



a mixture of vinegar and honey. 

 pachy-, p&Tc'-i (Gr. pachus, thick), thick ; dense ; as pac%-dermatous, 



having a thick skin. 

 pan-, pan, pant-, pant, and panto-, pant'd(Gi. pan, all), all; everything: 



pandemonium, the place of all the demons : pantomime, a theatrical 



dumb show of all sorts of actions and characters. 



para, pdr^d, also par (Gr. para, by, along), side by side as if for com- 

 parison ; like ; unlike ; contrary to : paradox, that which is contrary 



to received opinion : parody, a poetical composition, like in substance, 



but unlike in sense, to another. 

 penta-, pent'a, and pente-, p%nt'-e (Gr. p%nfe, five), five ; in L. quinque; 



as pewtfaphyllous, having five leaves. 

 per, with its form pel(L.), through ; thoroughly ; by ; for : perennial, 



lasting through the year ; perfect, done thoroughly : per becomes 



pel before 1, as in pellucid, thoroughly clear. 

 peri, per'-i (Gr. ), round ; about : perimeter, the measure round about ; 



period, a way round. 



pharyngo-,/ar- 72^(70 (Gr. pharunyx, the gullet or windpipe), denoting 

 connection with the pharynx or windpipe ; as pharynyo-gloa&al, pert. 



to the pharynx and tongue. 

 phyllo-,/^'Zo"(Gr. phyllon, a leaf), a leaf; mL. folium; asp%#otaxis, 



the arrangement of leaves on the stem. 

 platy-, pldt-i (Gr. platus, broad), broad j in L. lalus; as 

 having broad leaves. 



