Prefixes, Suffixes, and Combining Forms - Department of Education ...
Prefixes, Suffixes, and Combining Forms - Department of Education ...
Prefixes, Suffixes, and Combining Forms - Department of Education ...
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
psil- 46<br />
radio-<br />
: quack pseudoanalyst d :fictitious pseudobiography e<br />
: unreal : illusory pseudohallucination 2 a : substance<br />
deceptively resembling a specified thing pseudomalachite<br />
b:temporary or substitute formation similar to a specified<br />
thing pseudobranchia pseudopodium 3 :chemical compound<br />
resembling, isomeric with, or related to a specified<br />
compound pseudocumene 4 :abnormal : aberrant pseudarthrosis<br />
pseudembryo pseudovum<br />
psil- or psilo- combining form Gk, fr. psilos akin to Gk psn to<br />
rub, wipe : mere : bare psilomelane Psilopsida<br />
psor- or psoro- combining form NL, fr. L, fr. Gk, fr. psra<br />
: itch psorergates psorosperm<br />
psych- or psycho- combining form Gk, fr. psych life, spirit,<br />
soul, self 1 :soul : spirit psychogram psychopannychism<br />
psychotheism 2 a : mind : mental processes <strong>and</strong> activities<br />
psychodynamic psychology psychometric b :psychological<br />
methods psychoanalysis psychotherapy c :cerebral<br />
psychosurgery psychotropic d :mental <strong>and</strong> : psychic<br />
<strong>and</strong> psychogalvanic psychophysical<br />
psychro- combining form Gk, fr. psychros, fr. psychein to make<br />
cold : cold psychrometer<br />
pter- or ptero- combining form NL, fr. Gk, fr. pteron : feather<br />
: wing pteridium pterodactyl<br />
-ptera n combining form NL, fr. Gk, neut. pl. <strong>of</strong> -pteros -pterous<br />
: organism or organisms having such or so many wings<br />
or winglike parts in taxonomic names esp. in zoology<br />
Hemiptera Physaloptera<br />
pterid- or pterido- combining form GK pterid-, pteris : fern<br />
pteridography pteridoid<br />
-pteris n combining form NL, fr. Gk, fr. pteris : fern in<br />
generic names Glossopteris Ornithopteris<br />
-pterous adj combining form Gk -pteros -winged, fr. pteron<br />
wing, feather : having so many or such wings or winglike<br />
parts anisopterous hexapterous trichopterous<br />
-pterus n combining form NL, fr. Gk -pteros -pterous : one<br />
having such wings or winglike structures in generic<br />
names Chaetopterus Trachypterus<br />
pteryg- or pterygo- combining form Gk, fr. pteryg-, pteryx akin<br />
to Gk pteron wing, feather 1 : wing : fin pterygoblast<br />
pterygobranchiate 2 :pterygoid <strong>and</strong> pterygomalar<br />
-pterygii n pl combining form NL, fr. Gk pteryg-, pteryx wing,<br />
fin : winged ones : finned ones in taxonomic names<br />
Chrondropterygii Neopterygii Pleuropterygii<br />
-pteryx n combining form NL, fr. Gk, fr. pteryx wing more<br />
at - : winged one : finned one in generic names<br />
Dipteryx Odontopteryx<br />
ptil- or ptilo- combining form NL, fr. Gk ptilon akin to Gk<br />
pteron feather : down : feather Ptilocercus<br />
-ptile n combining form - Gk ptilon : feather neossoptile<br />
teleoptile protoptile<br />
ptyal- or ptyalo- combining form NL, fr. Gk, fr. ptyalon spittle,<br />
saliva, fr. ptyein to spit : saliva ptyalagogue ptyalorrhea<br />
ptych- or ptycho- combining form Gk ptych-, fr. ptych, fr. ptyssein<br />
to fold : fold : layer Ptychosperma<br />
-ptysis n combining form, pl -ptyses NL, fr. Gk, act <strong>of</strong> spitting,<br />
fr. ptyein to spit : spittle : spit hemoptysis plasmoptysis<br />
pulmo- combining form L pulmo 1 :lung pulmometry 2<br />
: pulmonic <strong>and</strong> pulmogastric<br />
pulmon- also pulmoni- or pulmono- combining form L pulmon-,<br />
pulmo : lung pulmonal pulmoniferous : pulmonary<br />
<strong>and</strong> pulmonocardiac<br />
pupillo- combining form L pupilla pupil <strong>of</strong> the eye : pupil<br />
pupillodilator<br />
purpuri- combining form L purpura : purple purpuriparous<br />
purpuriferous<br />
-pus n combining form NL -pod-, -pus, fr. Gk -pod-, -pous, fr.<br />
pod-, pous foot : creature having such a foot or feet monopus<br />
Lycopus chiefly in generic names in zoology<br />
mastigopus Pygopus compare -<br />
py- or pyo- combining form Gk, fr. pyon pus 1 :marked by<br />
the presence <strong>of</strong> pus in or with pyolymph pyemia 2 :due<br />
to or associated with a pus-producing infection : suppurative<br />
pyonephritis pyophthalmia<br />
pycn- or pycno- combining form L, fr. Gk pykn-, pykno-, fr.<br />
pyknos akin to Gk pyka thickly, Alb puth kiss, Av pus- headb<strong>and</strong><br />
basic meaning: pressed together : close : compact<br />
: dense : bulky pycnic pycnidium pycnogonid<br />
pyel- or pyelo- combining form NL, fr. Gk, trough, vat, fr. pyelos<br />
akin to Gk plynein to wash, plein to sail, float 1 :pelvis<br />
pyelometry pyelic 2 :renal pelvis pyelogram pyelitis<br />
pyg- or pygo- combining form Gk, fr. pyg : rump : buttocks<br />
pygalgia pgyostyle<br />
-pyga or -pygia n combining form -pyga fr. NL, fr. Gk pyg<br />
rump -pygia fr. NL, fr. Gk pyg + NL -ia : creature having<br />
such a rump in generic names in zoology Eurypyga<br />
Macropygia<br />
pykno- combining form : pyl-<br />
or pyle- or pylo- combining form NL, fr. Gk, fr. pyl gate<br />
: portal vein pylethrombophlebitis<br />
-pyle n combining form - ISV, fr. Gk pyl gate : opening : orifice<br />
micropyle apopyle<br />
pylor- or pyloro- combining form LL pylorus : pylorus pyloralgia<br />
pylorocleisis<br />
pyopneumo- combining form NL, fr. py- + pneum- : containing<br />
or characterized by the presence <strong>of</strong> both pus <strong>and</strong> gas<br />
pyopneumocyst pyopneumoperitonitis<br />
pyr- or pyro- combining form ME pyro-, fr. MF pyr-, pyro-, fr.<br />
LL, fr. Gk, fr. pyr 1 a : fire : heat pyrometer pyrheliometer<br />
b :pyrogenous <strong>and</strong> pyromagnetic 2 a : derivative by<br />
the action <strong>of</strong> heat esp : derived from the corresponding ortho<br />
acid by loss usu. <strong>of</strong> one molecule <strong>of</strong> water from two molecules<br />
<strong>of</strong> acid in names <strong>of</strong> inorganic acids pyrophosphoric<br />
acid compare - 4b, - 3 b :due to or attributed to<br />
the action <strong>of</strong> fire or heat pyrochlore pyrometamorphism<br />
also : <strong>of</strong> fiery color pyrophanite 3 :fever : fever producing<br />
pyrotoxin pyrogen<br />
pyramido- combining form NL, fr. L pyramid-, pyramis pyramid<br />
1 :pyramidally pyramidoattenuate 2 :pyramidal <strong>and</strong><br />
pyramidoprismatic<br />
pyren- or pyreno- combining form NL, fr. Gk pyrn-, pyrno-,<br />
fr. pyrn 1 : stone <strong>of</strong> a fruit pyrenocarp 2 : nucleolus<br />
pyrenematous pyrenin<br />
pyret- or pyreto- combining form Gk, fr. pyretos burning heat,<br />
fever, fr. pyr fire : fever pyretogenesis pyretetiology<br />
pyrrh- or pyrrho- also pyrro- combining form Gk pyrrh-,<br />
pyrrho-, fr. pyrrhos red, tawny, fr. pyr fire : red : tawny<br />
pyrrhite pyrrhotite<br />
quadri- or quadr- or quadru- combining form ME, fr. L akin<br />
to L quattuor four 1 a : four quadriliteral quadrual b<br />
: square quadric c : - quadribasic 2 : fourth<br />
quadricentennial 3 :quadric quadricone<br />
quart- combining form L, fr. quartus : fourth quartic<br />
quater- combining form ISV, fr. L quater four times : -<br />
esp. in names <strong>of</strong> organic compounds to denote the quadrupling<br />
<strong>of</strong> a radical or molecule quaterphenyl quaterthiazole<br />
quinque- or quinqu- combining form L, fr. quinque five 1<br />
: five quinquecapsular quinquelateral 2 :into five parts<br />
quinquesection<br />
quint- or quinti- combining form ME, fr. MF, fr. L, fr. quintus<br />
akin to L quinque five 1 :fifth quintillion 2 :-<br />
quintiped 3 :a specified musical instrument having its<br />
pitch a fifth above the normal<br />
rachi- or rachio- also rhachi- or rhachio- combining form Gk<br />
rhachi-, fr. rhachis lower part <strong>of</strong> the back, spine, backbone<br />
akin to Gk rhachos thorn hedge, MIr fracc needle, Lith raas<br />
stubble, tine <strong>of</strong> a fork : spine : spinal : spinal <strong>and</strong> rachicentesis<br />
rachiodont rachiometer<br />
-rachidia n combining form - NL, fr. rachid-, rachis + -ia<br />
: condition <strong>of</strong> the spine atelorachidia<br />
radio- combining form F, fr. L radius ray 1 a : radial : radially<br />
radiosymmetrical radiolitic b :radial <strong>and</strong> radiobicipital<br />
2 a : radiant energy : radiation radioactive radioder
Change language