Medical Terminology Letter P



pachy- thick
-pagus conjoined twins
palat/o palate
pale/o old
palin-, pali- recurrence, repetition
palliat/o soothe, relieve
palp/o, palpat/o to touch gently
pan- all
pancreat/o pancreas
pant/o all, whole
-papa, parous to bear, bring forth
papill/o nipple-like, papilla
papul/o papule, pimple
para- alongside, near, beyond, abnormal
parasit/o parasite
parathyroid/o parathyroid
-paresis partial paralysis
-partum childbirth, labor
patell/o patella
path/o disease
-pause cessation
pector/o chest
pedicul/o louse
ped/o foot, child
pel/o mud
pelv/i pelvis
-penia deficiency
pent-, penta- five
-pepsia digestion
per- through, throughout
percuss/o to tap
peri- around, surrounding
perine/o perineum
peritone/o peritoneum
per/o deformed, maimed
perone/o fibula
perspir/o breathe through
pest/i plague, pests
peta- quadrillion (10¹⁵)
-petal moving toward, seeking
petr/o stone, petrous region of temporal bone
-pexy fixation
phac/o lens
phag/o, -phagia eating, ingestion
phak/o lens
phalang/o phalanges
phall/o penis
phaner/o visible, apparent
pharmac/o drugs
phas/o, -phasia speech
phen/o appearance
phe/o dusky
-pheresis removal
-phil, -philia affinity for, tendency towards
phim/o muzzle
phleb/o vein
-phob/o fear, aversion
phon/o, -phonia voice, sound
-phore, phor/o bearer, processor
-phoresis bearing, transmission
phosphat/o phosphate
phot/o light
phren/o mind, diaphragm
phyc/o seaweed, algae
-phylaxis protection
phyll/o leaf, leaf-like
phyl/o race, species, type
-phyma tumor, growth
physic/o physical, natural
physi/o nature
-physis growth, growing
phys/o air, gas
phyt/o, -phyte plant
pico- one trillionth (10⁻¹²)
picr/o bitter
piez/o, pies/i, -piesis pressure
pil/o hair
pimel/o fat, fatty
pin/o to drink
pituitar/o pituitary gland
plagi/o slanting, oblique
plan/o flat, level, wandering
plant/o sole of the foot
-plasm formation, growth
plasm/o plasma, formative substance
-plasty surgical correction/repair
platy- broad, flat
-plegia paralysis
ple/o more
plesi/o nearness, similarity
pless/i striking
pleur/o pleura
plex/o network (nerves or vessels), plexus
plic/o, plicat/o to fold, pleat
-ploid, -ploidy number of chromosome sets
pluri- more, several
-pnea breathe
pneum/o lung, air
pneumon/o lung, air
pod/o foot
-poiesis formation
poikil/o variation, irregular
poli/o gray (matter)
poly- many, much
pon/o fatigue, overwork, pain
-pore, por/o opening, passageway
-porosis porous, decrease in density
posia drinking
posit/o arrangement, place
post- after, behind
poster/o behind, towards the back
potenti/o power, strength
-prandial meal
-praxia action, activity
pre- before, in front of
presby- aging, elderly
primi- first
-privia loss, deprivation
pro- before
proct/o rectum, anus
pros/o forward, anterior
prosop/o face
prostat/o prostate gland
prote/o protein
prot/o first
proxim/o near
prurit/o itching
psamm/o sand, sand-like material
pselaphes/o touch
pseudo- false
psor/o itching
psych/o mind
psychr/o cold
-pterygium abnormality of the conjunctiva
pteryg/o wing-shaped
-ptosis prolapse, drooping
-ptysis spitting
pub/o pubis
pulmon/o lung
puls/o, pulsat/o to beat, beating
-puncture to pierce a surface
pupill/o pupil
purgat/o cleansing
purpur/i purple
purul/o pus formation
pyel/o renal pelvis
pyg/o buttocks
pykn/o, pycn/o thick, dense
pyl/e portal vein
pylor/o pylorus
py/o pus
pyret/o fever
pyrex/o feverishness, fever
pyr/o heat, fire, fever
pytal/o saliva