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Building Words
Numbers, Procedures, Directions, and Conditions
| Term | Definition | Example |
|---|---|---|
| Mono-, uni- | One, Single | Monocular (One Eye); Unilateral (One Side) |
| Bi- | Two, Double | Bilateral (Two Sides) |
| Tri- | Three | Trigeminal (pertaining to 3 branches of cranial nerve) |
| Ab- | Away from | Abduction (Away from the body) |
| Ad- | Toward Outside, Outer | Adduction (Toward the midline of the body) |
| Ecto-, exo- | Outside, Outer | Ectoderm (The outer layer of skin); Exoskeleton (skeleton on the outside of the body) |
| Endo- | Within, Inside | Endoscopy (a procedure to look inside the body) |
| Epi- | Upon, on, Above | Epidermis (Layer of skin upon or above the dermis) |
| Anterior or ventral | Front of the body | The nose is anterior to the brain; the belly of a cat is on the Ventral side |
| Posterior or dorsal | Back, Rear of body | The spine is posterior to the heart; The back of a dog is the dorsal side |
| Superior | Above, high | The head is superior to the chest |
| Inferior | Below, lower | The stomach is inferior to the heart |
| Lateral | Away from the midline towards the side | The arms are lateral to the chest |
| Distal | Farther from the trunk of the body | The toes are distal to the ankle |
| Proximal | Closer to the trunk of the body | The thigh is proximal to the knee |
| Ambi- | Both, Both sides | Ambidextrous (able to use both hands equally well) |
| Dys- | Bad, Difficult, Abnormal | Dyslexia (Difficulty reading and learning) |
| Eu- | Good, Normal, Well | Euphoria (feeling of well being, happiness) |
| Homo- | Same | Homologous (having the same structure) |
| Iso- | Equal | Isometric (equal in measurement, or length) |
| Mal- | Bad, Poor | Malfunction (a bad or improper functioning) |
| -algia | Pain | Neuralgia (nerve pain) |
| -emia | Blood Condition | Anemia (condition with low red blood cells in the blood) |
| -itis | Inflammation | Tonsilitis (inflammation of the tonsils) |
| -lysis | Breakdown, Separation | Hemolysis (destruction of red blood cells) |
| -oid | Resembling, Like | Sigmoid (S-shaped; like the letter S) |
| -opathy | -Disease, Disorder | Neuropathy (disease of the nerves) |
| -pnea | Breathing | Apnea (absence of breathing) |
| -centesis | Surgical puncture to remove fluid | Amniocentesis (removal of amniotic fluid) |
| -ectomy | Surgical Removal | Mastectomy (surgical removal of the breast) |
| -ostomy | Surgical creation of an opening | Tracheostomy (creating a opening in the trachea to help breathing) |
| -otomy | Incision, cutting into | Laparotomy (Surgical incision into the abdomen) |
| -orrhaphy | Surgical repair, Suturing | Myorrhaphy (Suturing of a muscle) |
| -opexy | Fixation, fix in place | Hysteropexy (Surgical fixation of the Uterus) |
| -oplasty | Surgical repair, Reconstruction | Angioplasty (Surgical repair of a blood vessel) |
| -otripsy | Crushing (stone; calculi) | Lithotripsy (crushing of a kidney stone) |