Lori Renda-Francis

Textbook for the Veterinary Assistant


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bad

      Prefixes related to direction:

ab‐ away from
ad‐ to, toward
de‐ opposite, reverse, remove
dia‐ apart, separate, between
e‐, ex‐ out of, away from
in‐ in, inside, within, not
re‐ back, again
retro‐ behind, backward

      Prefixes describing number or quantity:

ambi‐, amphi‐ both
bi‐ two
di‐ two, twice
hemi‐ half
mono‐ one
multi‐ many
pan‐ all, entire
poly‐ many, excessive
quadri‐ four
quint‐ five
semi‐ half, partial
tri‐ three
a‐, an‐ none
cyano‐ blue
erythro‐ red
leuko‐ white
macro‐ large
mega‐ big
micro‐ small
mio‐ less, smaller
olig‐ little, small
per‐ excessive, through, by means of

      By learning the meanings of commonly used suffixes, you will be able to break down parts of an unfamiliar word in order to find out its meaning. For example, if we take the root word “derm,” which means skin, and add the suffix “‐ology,” we get dermatology which is defined as the study of skin. If we add the suffix “‐itis” to “derm,” we end up with dermatitis, which is an inflammation of the skin. So by changing the suffix we can create new words.

      Below is a list of some of the suffixes commonly used in veterinary medicine.

‐algia pain
‐centesis surgical puncture
‐cide kills
‐cyte cell
‐ectomy cutting out, surgically removing
‐emesis vomit
‐emia blood condition
‐itis inflammation
‐ology science, study of
‐oma tumor
‐otomy creation of an opening
‐penia deficiency of, lack of
‐phag eating, devouring
‐phobia abnormal fear, intolerance
‐pnea breathing
‐ptosis prolapse, downward displacement
‐rrhage excessive flow
‐rrhea flow or discharge
‐scopy act of examining
‐tomy cut, incision

      Below is list of commonly used root words. They are grouped according to their relationship to the anatomy – external or internal. External anatomy refers to any visible part of the body, and internal anatomy refers to organs, bones, and other tissues within the body.

      External anatomy

blepha‐ eyelid or eyelash
capit‐ head
carp‐ area corresponding to human wrist
cervic‐ neck
dactyl‐ digit, toe
dent‐ tooth or teeth
derm‐ skin
gingiv‐ gums
gloss‐ tongue
lapar‐ flank or abdomen