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Medical TERMINOLOGY   -   A thru Z

Prefixes, roots, suffixes  [ P ]

Prefix: A prefix is placed at the beginning of a word to modify or change its meaning. Pre means "before." Prefixes may also indicate a location, number, or time. 
Root
: central part of a word.     
Suffix
:  The ending part of a word that modifies the meaning of the word. Example: homeless. Root = 'home' and the suffix is 'less'. It can also refer to a condition, disease, disorder, or procedure.    

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Term
[ Meaning ]
pachy- [ heavy; thick ]
-pagus [ conjoined twins  ]
palat/o [ palate (roof of mouth)  ]
pale/o [ old ]
pali- [ recurrence, repetition ]
palliat/o [ to soothe, relieve ]
palpebr/o [ eyelid ]
palp/o, palpat/o [ to touch gently ]
palpit/o [ flutter, throbbing ]
pan- [ all ]
pancreat/o [ pancreas ]
pant/o [ all, whole  ]
papill/o [ nipple-like; optic disc  ]
papul/o [ papule, pimple  ]
par- [ other than; abnormal  ]
para- [ near; beside; abnormal; apart from; along the side of  ]
-para [ to bear, bring forth (live births)  ]
-parous [ to bear, bring forth  ]
parasit/o [ parasite ]
parathyroid/o [ parathyroid glands  ]
-paresis [ weakness ]
-pareunia [ sexual intercourse  ]
-partum [ birth; labor  ]
patell/a [ patella ]
patell/o [ patela ]
path/o [ disease ]
-pathy [ disease; emotion  ]
pector/o [ chest ]
pedicul/o [ louse  ]
ped/o [ child; foot  ]
pelv/i [ pelvis; hip region  ]
pelv/o [ pelvis; hip region  ]
pend/o [ to hang  ]
-penia [ deficiency ]
-pepsia [ digestion ]
per- [ through ]
percuss/o [ to tap ]
peri- [ surrounding ]
perine/o [ perineum ]
peritone/o [ peritoneum ]
per/o [ deformed, maimed ]
perone/o [ fibula ]
perspir/o [ breathe through  ]
petr/o [ stone, petrous region of temporal bone  ]
-pexy [ fixation; to put in place  ]
phac/o [ lens of eye  ]
phag/o [ eat; swallow  ]
-phage [ eat; swallow  ]
-phagia [ eating; swallowing  ]
phak/o [ lens of eye  ]
phalang/o [ phalanges (of fingers and toes)  ]
phall/o [ penis ]
phaner/o [ visible, apparent ]
pharmac/o [ drug ]
pharmaceut/o [ drug ]
pharyng/o [ throat (pharynx)  ]
phas/o [ speech ]
-phasia [ speech ]
phe/o

[ dusky; dark  ]

-pheresis [ removal ]
phil/o [ like; love; attraction to  ]
-phil [ attraction for  ]
-philia [ attraction for  ]
phim/o [ muzzle ]
phleb/o [ vein ]
phob/o [ fear ]
-phobia [ fear ]
phon/o [ voice; sound  ]
-phonia [ voice; sound  ]
-phor/o [ to bear  ]
-phoresis [ carrying; transmission  ]
-phoria [ to bear, carry; feeling (mental state)  ]
phosphat/o [ phosphate ]
phot/o [ light ]
phren/o [ diaphragm; mind  ]
-phthisis [ wasting away  ]
-phylaxis [ protection ]
phyl/o [ race, species, type  ]
physi/o [ nature; function  ]
physic/o [ physical, natural  ]
-physis [ to grow  ]
phys/o [ air, gas ]
phyt/o [ plant ]
-phyte [ plant ]
picr/o [ bitter ]
pies/i, -piesis [ pressure ]
pil/o [ hair ]
pimel/o [ fat, fatty  ]
pineal/o [ pineal gland  ]
pin/o [ to drink  ]
pituitar/o [ pituitary gland  ]
-plakia [ plaque ]
plan/o [ flat, level, wandering  ]
plant/o [ sole of the foot  ]
plas/o [ development; formation  ]
-plasia [ development; formation  ]
-plasm [ formation; structure  ]
-plastic [ pertaining to formation  ]
-plasty [ surgical repair  ]
platy- [ broad, flat  ]
ple/o [ more; many  ]
-plegia [ paralysis; palsy  ]
-plegic [ paralysis; palsy  ]
pleur/o [ pleura ]
plex/o [ plexus; network (of nerves)  ]
-pnea [ breathing ]
pneum/o [ lung; air; gas  ]
pneumon/o [ lung; air; gas  ]
pod/o [ foot ]
-poiesis [ formation ]
-poietin [ substance that forms  ]
poikil/o [ varied; irregular  ]
pol/o [ extreme ]
polio- [ gray matter (of brain or spinal cord)  ]
poly- [ many; much  ]
polyp/o [ polyp; small growth  ]
pont/o [ pons ( a part of the brain)  ]
por/o, -pore [ opening, passageway  ]
-porosis [ condition of pores (spaces)  ]
-posia [ drinking  ]
posit/o [ arrangement, place  ]
post- [ after; behind  ]
poster/o [ back (of body); behind  ]
-prandial [ meal ]
-praxia [ action ]
pre- [ before; in front of  ]
presby/o [ old age  ]
primi- [ first ]
pro- [ before; forward  ]
proct/o [ anus and rectum  ]
pros- [ before; forward  ]
pros/o [ forward, anterior  ]
prosop/o [ face  ]
prostat/o [ prostate gland  ]
prot/o [ first ]
prote/o [ protein ]
proxim/o [ near ]
prurit/o [ itching ]
psamm/o [ sand, sand-like material ]
pseudo- [ false ]
psor/o [ itching ]
psych/o [ mind ]
psychr/o [ cold  ]
-pterygium [ abnormality of the conjunctiva  ]
-ptosis [ droop; sag; prolapse; protrude  ]
ptyal/o [ saliva ]
-ptysis [ spitting ]
pub/o [ pubis (anterior part of hip bone)  ]
pulmon/o [ lung ]
puls/o, pulsat/o [ to beat, beating  ]
-puncture [ to pierce a surface  ]
pupill/o [ pupil (dark center of eye)  ]
purpur/i [ purple ]
purul/o [ pus ]
py/o [ pus ]
pycn/o [ thick, dense  ]
pyel/o [ renal pelvis  ]
pyl/e [ portal vein  ]
pylor/o [ pylorus; pyloric sphincter  ]
pyr/o [ fever; fire  ]
pyret/o [ fever ]
pyrex/o [ fever ]
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