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A
| Prefix/Suffix
| Meaning
|
| a-, an- | not, without, less
|
| ab | away from
|
| –ac | pertaining to
|
| acous/acouso- | hearing
|
| acr/acro- | extremity, topmost
|
| –acusis | hearing condition
|
| –ad | toward, in the direction of
|
| ad- | increase, adherence, motion toward, very
|
| aden/adeno- | gland
|
| adip/adipo- | fat
|
| adren/adreno- | gland
|
| –aemia | blood condition (BrE)
|
| aer/aero- | air, gas
|
| aesthesio- | sensation (BrE)
|
| –al | pertaining to
|
| alge/algesi- | pain
|
| –algia | pain
|
| algio/algo- | pain
|
| ambi- | around, on all sides, both
|
| an- | not, without
|
| an/o | anus
|
| angi- | blood vessel
|
| ankyl/ankylo- | crooked, stiff
|
| ante- | before
|
| anti- | against, opposed to
|
| apo- | separated from, derived from
|
| arteri/arterio- | artery
|
| arthr/arthro- | joint, articulation
|
| articul/articulo- | joint
|
| –ary | pertaining to
|
| –ase | enzyme
|
| –asthenia | weakness
|
| –ation | process
|
| auri- | ears (aural)
|
| aut/auto- | self, same
|
B
| bacteri/bacterio- | bacteria
|
| bi- | twice, double
|
| bio- | life
|
| blast/blasto- | germ or bud
|
| bleph/blepharo- | eyelid
|
| brachi/brachio- | arm
|
| brady- | slow
|
| bronch/bronchi- | bronchus
|
| bucc/bucco- | cheek
|
| burs/burso- | bursa
|
C
| carcin/carcino- | cancer
|
| cardi/cardio- | heart, esophageal opening of stomach
|
| cata- | down
|
| –cele | pouching, hernia
|
| –centesis | surgical puncture for aspiration
|
| cephal/cephalo- | head
|
| chem/chemo- | chemistry, drug
|
| chlor/chloro- | green
|
| chol- | bile
|
| chondrio/chondro- | cartilage, gristle
|
| chrom/chromato- | color
|
| –cidal/cide | killing, destroying
|
| circum- | around
|
| cis- | on this side
|
| co- | with, together, in association
|
| col/colo/colono- | colon
|
| com- | with, together
|
| contra | against
|
| cor- | with, together
|
| costo | ribs
|
| crani/cranio- | cranium, skull
|
| cry/cryo- | cold
|
| cycl- | circle, cycle
|
| cyst/cysti/cysto- | bladder or sac
|
| cyt/cyto- | cell
|
| –cyte | cell
|
D
| dacrio- | tear
|
| dactyl/dactylo- | digit (finger or toe)
|
| de- | away from, cessation
|
| derm/dermis/dermato- | skin
|
| –desis | binding
|
| dextr/dextro- | right, on the right side
|
| di- | separation, two
|
| dif- | separation
|
| dis- | separation, taking apart
|
| duodeno- | duodenum
|
| dynamo- | force, energy
|
| –dynia | pain
|
| dys- | bad, difficult
|
E
| –eal | pertaining to
|
| ec- | out, away
|
| ect- | outer, outside
|
| –ectasis | expansion, dilation
|
| ecto- | outer, outside
|
| –ectomy | excision, removal
|
| –emia | blood condition (AmE)
|
| –encephal/encephalo- | brain
|
| endo- | internal
|
| enter/entero- | small intestine
|
| epi- | upon
|
| erythr/erythro- | red
|
| –esophageal/esophago- | gullet (AmE)
|
| esthesio- | sensation (AmE)
|
| eu- | good, well
|
| ex- | out of, away from
|
| exo- | exterior, outward
|
| extra- | outside
edopotra- ||stiff
|
F
| fibr/fibro- | fiber
|
| –form | in the form or shape of
|
G
| –-galact/galacto- | milk
|
| –gen | origin or production
|
| gloss/glosso- | tongue
|
| glott/glotto- | opening
|
| gluco- | glucose
|
| glyco- | sugar
|
| gnath/gnatho- | jaw
|
| –gram | recording
|
| –graph | recording instrument
|
| –graphy | process of recording
|
gyn/gyno-
gynae/gynaeco-
gyne/gyneco- | woman, also:
(BrE}
(AmE}
|
H
| haem/haema/haemat/haemato/haemo– | blood (BrE)
|
| hem/hema/hemat/hemato- | blood (AmE)
|
| hemi- | one-half
|
| hemo- | blood (AmE)
|
| hepat/hepatico/hepato- | liver
|
| hidr/hidro- | sweat
|
| hist/histio/histo- | tissue
|
| hydr/hydro- | water
|
| hyper- | above normal, excessive
|
| hypo- | below normal, deficient
|
| hyster/hystero- | uterus
|
I
| –ia/iasis | condition
|
| –iatrics | treatment
|
| –iatry | treatment
|
| –ic | pertaining to
|
| –icle | small
|
| –ics | organized knowledge, treatment
|
| idio- | self, one's own
|
| ileo- | ileum
|
| infra- | below
|
| inter- | between, among
|
| intra- | within
|
| irid/irido- | iris
|
| ischi/ischio- | ischium
|
| –ism | condition, disease
|
| –ismus | spasm, contraction
|
| iso- | equal, like
|
| –ist | one who specializes in
|
| –ite | the nature of, resembling
|
| –itis | inflammation
|
| –ium | structure, tissue
|
K
| karyo- | nucleus
|
| kerat/kerato- | cornea (eye or skin)
|
| kin/kine/kinesi/kinesio- | movement
|
| kino- | movement
|
| kyph/kypho- | humped
|
L
| lacrim/lacrimo- | tear
|
| lact/lacti/lacto- | milk
|
| laryng/laryngo- | larynx
|
| latero- | lateral
|
| lei/leio- | smooth
|
| –lepsis/lepsy | seizure
|
| lepto- | light, slender
|
| leuk/leuko- | white
|
| linguo- | tongue
|
| lip/lipo- | fat
|
| lith/litho- | stone, calculus
|
| log- | speech
|
| –logist | one who specializes in study or treatment of
|
| logo- | speech
|
| –logy | study of
|
| lymph/lympho- | lymph
|
| lys-/lyso-/ -lytic | dissolution
|
M
| macr/macro- | large, long
|
| –malacia | softening
|
| mast/masto- | breast
|
| meg/mega- | large
|
| megal/megalo- | large
|
| –megaly | large
|
| melan/melano- | black
|
| mening/meningo- | meninges
|
| mes/meso- | middle
|
| meta- | after, behind
|
| –meter | instrument for measuring
|
| –metry | process of measuring
|
| micr/micro- | smallness, one-millionth
|
| mon/mono- | single
|
| morph/morpho- | form, shape
|
| muscul/musculo- | muscle
|
| my/myo- | muscle
|
| myc/myco- | fungus
|
| myel/myelo- | bone marrow, spinal cord
|
| myring/myringo- | eardrum
|
| myx/myxo- | mucus
|
N
| necr/necro- | death
|
| neo- | new
|
| nephr/nephro- | kidney
|
| neur/neuri/neuro- | nerve
|
| normo- | normal
|
O
| oculo- | eye
|
| odont/odonto- | tooth
|
| odyn/odyno- | pain
|
| –oesophageal/oesophago- | gullet (BrE)
|
| –oid | resemblance to
|
| olig/oligo- | few, little
|
| –oma | tumor
|
| –omata | plural of -oma
|
| onco- | tumor, bulk, volume
|
| onych/onycho- | fingernail, toenail
|
| oo- | egg, ovary
|
| oophor/oophoro- | ovary
|
| ophthalm/ophthalmo- | eye
|
| orchi/orchido/orchio- | testis
|
| orth/ortho- | straight, normal, correct
|
| –osis | a condition,disease or increase
|
| osseo- | bony
|
| ossi- | bone
|
| ost/oste/osteo- | bone
|
| ot/oto- | ear
|
| –ous | pertaining to
|
| ovari/ovario/ovi/ovo- | ovary
|
| oxo- | addition of oxygen
|
| oxy- | sharp, acid, acute, oxygen
|
P
| pachy- | thick
|
| pan/pant/panto- | all, entire
|
| para- | alongside of, abnormal
|
| –paresis | slight paralysis
|
| path/patho- | disease
|
| –pathy | disease
|
| pelv/pelvi/pelvo- | hip bone
|
| –penia | deficiency
|
| per- | through
|
| peri- | around, about
|
| –pexy | fixation
|
| phaco- | lens-shaped
|
| –phage/phagia | eating, devouring
|
| phago- | eating, devouring
|
| –phagy | eating, devouring
|
| pharmaco- | drug, medicine
|
| pharyng/pharyngo- | pharynx
|
| –phil/philia | attraction for
|
| phleb/phlebo- | vein
|
| phob/phobo- | exaggerated fear, sensitivity
|
| phon/phono- | sound
|
| phos- | light
|
| phot/photo- | light
|
| phren/phreni- | diaphragm
|
| phrenico/phreno- | diaphragm
|
| –plasia | formation, development
|
| plasty | surgical repair, reconstruction
|
| –plegia | paralysis
|
| pleur/pleura/pleuro- | rib, pleura
|
| pneum/pneuma- | air, lung
|
| pneumat/pneumato- | air, lung
|
| pod/podo- | foot
|
| –poiesis | production
|
| poly- | multiplicity
|
| por/poro- | pore, pourous
|
| post- | after, behind, posterior
|
| pre- | anterior, before
|
| presby/presbyo- | old age
|
| pro- | before, forward
|
| proct/procto- | anus, rectum
|
| psych/psyche/psycho- | mind
|
| –ptosis | falling, downward placement
|
| pyel/pyelo- | pelvis
|
| pyo- | pus
|
| pyro- | fever
|
Q
R
| rachi/rachio | spine
|
| radio- | radiation, radius
|
| re- | again, backward
|
| rect/recto- | rectum
|
| ren/reno- | kidney
|
| reticul/reticulo- | net
|
| retro- | backward, behind
|
| rhabd/rhabdo- | rod shaped, striated
|
| rhin/rhino- | nose
|
| –rrhage | burst forth
|
| –rrhagia | discharge
|
| –rrhaphy | surgical suturing
|
| –rrhea | flowing, discharge
|
| –rrhexis | rupture
|
S
| salping/salpingo- | tube
|
| sarco- | muscular, fleshlike
|
| schisto- | split, cleft
|
| schiz/schizo- | split, cleft, division
|
| scler/sclero- | hardness
|
| scoli/scolio- | twisted
|
| –scope | instrument for viewing
|
| –scopy | use of instrument for viewing
|
| semi- | one-half, partly
|
| sial/sialo- | saliva, salivary gland
|
| sigmoid/sigmoido- | sigmoid, sigmoid colon
|
| sinistr/sinistro- | left, left side
|
| –sis | condition of
|
| sito- | food, grain
|
| somat- somatico- somato- | body, bodily
|
| spasmo- | spasm
|
| sperma- spermato- spermo- | semen, spermatozoa
|
| splanchn- splanchni- splanchno- | viscera
|
| splen/spleno- | spleen
|
| spondyl/spondylo- | vertebra
|
| –stasis | stop, stand
|
| –staxis | dripping, trickling
|
| steno- | narrowness, constriction
|
| stheno- | strength, force, power
|
| stom/stoma- | mouth
|
| stomat/stomato- | mouth
|
| –stomy | creation of opening
|
| sub- | beneath
|
| super- | in excess, above, superior
|
| supra- | above, excessive
|
| sy/syl- | together
|
| sym- | together
|
| syn- | together
|
| sys- | together
|
T
| tachy- | fast
|
| –tension/–tensive | pressure (of blood)
|
| thel/thelo- | nipples
|
| therm/thermo- | heat
|
| thorac/thoracico/thoraco- | chest, thorax
|
| thromb/thrombo- | blood clot
|
| thyr/thyro- | thyroid gland
|
| –tic | pertaining to
|
| toco- | childbirth
|
| –tome | cutting instrument
|
| –tomy | cutting operation
|
| tono- | tone, tension, pressure
|
| –tony | tension
|
| top/topo- | place, topical
|
| tox/toxi/toxico/toxo- | toxin, poison
|
| trache/tracheo- | trachea
|
| trans- | across, through, beyond
|
| trich/trichi/trichia/tricho- | hair, hairlike structure
|
| –tripsy | crushing
|
| –trophy | tissue
|
| tympan/tympano- | eardrum
|
U
| –ula/ule | small
|
| ultra- | beyond, excessive
|
| uni- | one
|
| uri/uric/urico- | uric acid
|
| ur/uro- | urine
|
V
| varic/varico- | swollen or twisted vein
|
| vas-/vaso- | duct, blood vessel
|
| vasculo- | blood vessel
|
| vesic/vesico- | vesicle
|
X
| xanth/xantho- | yellow, yellowish
|
Y
| –y | condition or process of
|
Z
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
