Medical terminology prefix, suffix, and root words

-er, -ist

One who

-iatrician

Practitioner

-logist

one who studies, specializes in

-ic, -ac, -al, -ical

pertaining to

-iatrics, iatry

pertaining to the study of

-logy

The study of

cardi/o

heart

crin/o

to secrete

dermat/o

skin

esthi/o

feeling/sensation

gastr/o

stomach

entr/o

small intestines

ger/a, ger/o, geront/o

elderly/aged

gynec/o

female (dissorders)

immun/o

immune system

laryng/o

larynx (voice box)

ne/o, nat/o

new/birth

nuer/o

nerves

obstetr/o

obstetrics, midwifery

onc/o

tumors

opthalm/o

eyes

orth/o, ped/o

straight/child

psych/o

mind

radi/o

radiation (radius)

rheumat/o

rheumatism (connective tissue disorders)

rhin/o

nose

ur/o

urinary tract

or/o

mouth

ot/o

ear

an-

without

endo-

inside

-centesis

surgical puncture (to remove fluid)

-ectomy

surgical removal (excision)

-lysis

loosening/freeing/destroying

-pexy

surgical fixation

-plasty

surgical repair

rrhaphy

suture

-scopy

examining

-stomy

surgical formation of an opening

-tome

instrument used for cutting

-tomy

incision (tissue cutting)

-tripsy

surgical cushing