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Medical Terminology

Common medical suffixes, prefixes, word roots, and pluralizing ending changes

TermDefinition
Dermat/o Skin
Cutane/o Skin
Nephr/o Kidney
Ren/o Kidney
Somat/o Mouth
Or/o Mouth
Esthes/o Feeling
Therm/o Heat
Muscul/o Muscles
Nas/o Nose
Ur/o Urine
Nat/o Birth
Chondr/o Cartilage
Arthr/o Joints
Erythr/o Red coloring
Gastr/o Stomach
Hepat/o Liver
Immun/o Immune
Oste/o Bones
Enter/o Intestines
-itis Inflammation
-megaly Enlargement
-oma Cancer
Splen/o Spleen
Hyster/o Uterus
Neur/o Nerves, nervous system
Ot/o Ears
Hydr/o Water
-ectomy Surgical removal
-centesis Puncture
-lysis Destruction
-pexy Fixation (of an organ)
-plasty Repair
-rrhaphy Suture
-stomy Forming a mouth, opening
-tomy Incision
-tripsy Crushing (usually of a stone)
-algia Pain
-cele Hernia, swelling
-desis Binding
-ectasis Dialation
-edema Watery fluid
-emisis Vomiting
-gen, genesis Forming, producing
-iasis Abnormal
-lith Stone
-malacia Softening
-pathy Disease
-penia Decrease, deficiency
-phagia Swallowing
-phasia Speech
-plasia Forming, growth
-plegia Paralysis
-sclerosis Abnormal condition of hardening
-stenosis Narrowing
-toxic Poison
-trophy Development, nourishment
-logy The study of
-ac Pertaining to
-al Pertaining to
-ary Pertaining to
-ic, ical Pertaining to
-tic Pertaining to
-esis Condition
-is Noun ending
-ism Condition
-iatry Physician, treatment
-ist Specialist
-ole Small, minute
-ule Small, minute
-icle Small, minute
-gram Record, writing
-graph Instrument for recording
-graphy Process of recording
-meter Measure
-metry Act of measuring
-scope Instrument for examining
-scopy Visual examination
-y changes to -ies
-us changes to -i
-um changes to -a
-a changes to -ae
-ix changes to -ices
-en changes to -ina
-ax changes to -aces
-is changes to -es
-ex changes to -ices
-ma changes to -mata
-on changes to -a
Hemat/o Blood
Encephal/o Brain
-dynia Pain
-clasis To break; Surgical fracture
-tome Instrument to cut
-phobia Fear
-rrhea Flow, discharge
-spasm Involuntary contraction, twitching
Pre- Before
Peri- Around
Post- After
Endo- In, within
Intra- In, within
Epi- Above, upon
Hypo- Under, below; Deficient
Infra- Under, below
Sub- Under, below
Inter- Between
Retro- Backward, behind
Bi- Two
Dipl- Double
Diplo- Double
Hemi- One-half
Hyper- Excessive, above normal
Macro- Large
Micro- Small
Mono- One
Uni- One
Multi- Many, much
Poly- Many, much
Quadri- Four
Tri- Three
Ab- From, away from
Ad- Toward
Circum- Around
Peri- Around
Dia- Through, across
Trans- Through, across
Ecto- Outside, outward
Exo- Outside, outward
Extra- Outside, outward
Para- Near, beside; Beyond; To bear (offspring)
Super- Upper, above
Supra- Above; Excessive; Superior
Ultra- Excess, beyond
A-, An- Without, not
Anti- Against
Contra- Against
Auto- Self, own
Brady- Slow
Dys- Bad; Painful; Difficult
Eu- Good, normal
Hetero- Different
Homo- Same
Homeo- Same
Postnatal Pertaining to (the period) after birth
Prenatal Pertaining to (the period) before birth
Polyphobia Fear of many things
Antibacterial Against bacteria
Bradycardia Slow heart rate
Extracranial Pertaining to outside the skull
Quadriplegia Paralysis of all four extremities
Postoperative After surgery
Epigastric Pertaining to (the area) above the stomach
Diplopia Double vision
Hemiplegia Paralysis of one half
Macrocyte Large cell
Primigravida First pregnancy
Nulligravida Never been pregnant
Abduction Movement of a limb away from (the body)
Adduction Movement of a limb toward (the body)
Adsternal Near or toward the sternum
Dyspepsia Painful indigestion
Retroperitoneal Behind the peritoneum
Hypodermic Pertaining to under the skin
Homograft Same transplantation
Intercostal Between the ribs
Created by: kxyrxe