alveol/o: air sac
lob/o: lobe
somn/o: sleep
cyan/o: blue
-ptysis: to spit
ventil/o: wind
-centesis: surgical puncture
brady-: slow
constrict/o: narrow
-tic: pertaining to
-thorax: chest
rhin/o: nose
dys-: bad, painful, difficult
-ism: condition
-al: pertaining to
embol/o: a plug
hem/o: blood
trache/o: windpipe
peri-: around
cost/o: rib
cyst/o: sac, bladder
pneumon/o: lung, air
-plasty: surgical repair
in-: in, not
re-: again, back, backward
-um: structure
-itic: pertaining to
tachy-: fast
hyper-: excessive, above
-ation: condition, process
stin/o: partition
tonsill/o: tonsil
hale: breathe
para-: near, beside, abnormal
inter-: between
nas/o: nose
ox/o: oxygen
lyt/o: loosen, dissolve, separate
pulmon/o: lung
-logist: specialist in the study of
-ary: pertaining to
tubercul/o: nodule
a-: no, not, without
ex-: out
-ole: small
poly-: much, many
eu-: normal, good
purul/o: pus
pleur/o: lining of lung
capn/o: carbon dioxide
thorac/o: chest
thromb/o: clot
-or: one who
media-: middle
bronchi/o: breathing tube
spir/o: breathing, to breathe
pir/o: breathing, to breathe Note: The s is dropped after a x. Pir/o is derived from spir/o.
tom/o: to cut, to section
pharyng/o: throat
bronch/o: breathing tube
aden/o: gland
-metry: process of measuring
-ectomy: excision
anthrac/o: coal
pnea: breathing, to breathe
sinus/o: sinus, cavity
-scopy: process of viewing
son/o: sound
dilat/o: expand
py/o: pus
-tomy: incision
-stomy: new opening
pector/o: chest
coni/o: dust
endo-: within
pariet/o: wall
hypo-: deficient, below
sarc/o: flesh
voc/o: voice
-osis: condition
-ectasis: dilation
-itis: inflammation
-logy: study of
pneum/o: lung, air
laryng/o: voice box
muc/o: mucus
-scope: instrument to view
ultra-: beyond
-ent: pertaining to, forming
-graphy: process of recording
phon/o: voice
-meter: instrument to measure
or/o: mouth
-ia: condition
-ate: composed of
-oid: resembling
hyp(o)-: deficient, below The o is dropped if the root begins with an o; derived from hypo-