ì1) Derivation
ìa) Prefix: ante-brachium; ana-lysis
ìb) Sufix: brachi-alis; nephr-itis
ìc) Prefix + sufix: ante-brachi-alis; para-nephr-itis
ì2) Composition: prim-i-para; pneum-o-thorax
ì3) Derivation + composition: nas-o-lacrim-alis; haemat-ur-ia
ì4) Abbreviation: DM; CT; HIV, AIDS
ì5) Borrowings: shock; stress
ì
HOW DO WE DERIVE WORDS IN MEDICAL TERMINOLOGY

BASIC TERMINOLOGY
Medical words, like many other words consist of 3 basic component parts:
WORD ROOT
PREFIX
SUFFIX
PORT
RE
PORT
IM
PORT
SUP
PORT
EX
PORT
TRANS
PORT
PORT
ER
PORT
ABLE
TRANS
PORT
ABILITY

ìORIGIN: LATIN/GREEK prepositions and their phonological variants
ìROLE: SPECIFY/RESTRICT/CHANGE/ALTER the meaning of the derived word
ìAdductor vs. Abductor
ìPOSITION: AT the BEGINNING of the word
ìMEANING:
ìTIME/PLACE
ìDEGREE
ìDEVIATION/CORECTNESS
ì
ì
ì
PREFIXES

TIME/POSITION
Prae
natalis
Post
natalis
natalis
Peri
Ante
natalis
ante
positio
retro
positio
intra
uterinus
extra
uterinus
exo
genes
endo
genes
cisio
ex
cisio
circum
mortalis
Prae
mortalis
Post

DEGREE
hyper
trophia
hypo
trophia
a
trophia
DEVIATION/CORECTNESS
eu
pnoe
dys
pnoe
-
totalis
sub
totalis
-
magnus
per
magnus

GUESS THE MEANING OF THE PREFIX



GIVE THE OPPOSITE
Vas afferens
Colon ascendens
Pars extracellularis
Arteria infraorbitalis
Haemorrhagia epiduralis
Glandula exocrina
Hyperthyreosis
Graviditas intrauterina
•efferens
•
•descendens
•
•intracellularis
•
•supraorbitalis
•
•subduralis
•
•endocrina
•
•hypothyreosis
•
•extrauterina