Prefixes Location/Direction
Prefixes Location/Direction
Definitions Location/Direction
Building Med. Terms
Defining Med. Terms
100

ad-

to, toward, near

100

ante-

Before, in front of, ahead of

100

away from

ab-

or disti-, disto-

100

trans-

-al

derm(o)

trans/derm/al

100

endo/therm/ic

pertaining to within heat/temperature

200

co-, con-

Together

200

endo-

within, innermost

200

around

circum-

or peri-

200
epi-

derm(o)

-is

epi/derm/is

200

ante/part/um

pertaining to before birth

300

epi-

upon, over, upper
300

medi-, medio-, meso-

middle/midline

300

between

dia-

or

infer-

300

-al

cost(o)

inter-

inter/cost/al

300

peri/cardi/um

pertaining to around the heart

400
ultra-

beyond

400

trans-

across, over, beyond

400

within

endo-

or

intra-

400

para-

thyroid(o)

-itis

para/thydoid/itis

400

sub/cost/al

pertaining to below the ribs

500

retro-

backward, in back, behind

500

Dextri-, dextro-

to the right

500

left

sinistro-

500

-osis

exo-

cyt(o)

exo/cyt/osis

500

supra/ren/al

pertaining to above the kidneys