Medical Terminology is a special vocabulary used by healthcare professionals for effective and accurate communication
Words within the system usually have prefixes, rootwords, combiningvowels, and suffixes
These elements are combined to form specific terms that help describe various conditions of the human body
Medical Terms are based on Latin Origin, Greek Origin, Eponym (a word based on a person’s name), Acronym (shortened terms of long words), and Homonym (words that sound the same but differ in meaning)
Prefixes are placed at the beginning of a word to modify or change its meaning. They may indicate a location, number, or time
RootWords are the central part of the word that expresses the basic meaning of a term
Suffixes are short words added at the end of a word part or series of parts to modify its meaning
Rules of Suffixes:
When the suffix starts with a vowel, the combining vowel is dropped
When the suffix starts with a consonant, the combining vowel is not dropped
Prefixes are the first part of a medical word and can be attached to the beginning of the root or sometimes a suffix
Combining Forms:
When a suffix or another root beginning with a consonant is added to a root, a vowel is inserted between the root and the next word part to aid in pronunciation
Combining vowel is usually an o, but may occasionally be a, e, or i
Compound Words are words that contain more than one root word
Rules in Putting Combining Vowel:
When connecting a root to a suffix, the combining vowel is used only when the suffix starts with a consonant
When combining two root words, if the suffix starts with a vowel, the combining vowel is not needed
Medical Rules in Forming Plurals:
Rule 1: Change the a ending to ae
Rule 2: Change um ending to a
Rule 3: Change the us ending to i
Rule 4: Change the is ending to es
Rule 5: Change the ma or oma ending to mata
Rule 6: Change yx, ax, ix ending. Change x to c and add es
Rule 7: Change the nx ending. Change the x to g and add es
Rule 8: Change the on ending to a
Rule 9: Change the en ending to ina
English Rules in Forming Plurals:
Rule 1: Add s
Rule 2: When the term ends with s, x, ch, sh, add es
Rule 3: When the term ends with y change y to i and add es
Suffixes beginning with "rh":
When adding a suffix beginning with "rh" into a root word, double the "r"
Example: Hem/o (blood) + -rhage (bursting forth) = Hemorrhage (a bursting forth of blood)
Examples of Suffixes:
-al, -an, -ar, -ary, -eal: Pertaining to
-algia: Pain
-amnios: Inner fetal sac
-carcinoma: Cancer in the epithelial region
-cardia: Condition of the heart
-cele: Herniation or protrusion
-centesis: Surgical puncture
-chalasia: Condition of relaxation
-chezia: Condition of stools
-clasis: Intentional breaking
crine: To secrete, secretion
-cusis / -acusis: Hearing
-cyte: Cell
-cytosis: Abnormal increase of cells
-desis: Binding
-dipsia: Condition of thirst
-dynia: Pain
-ectasis / -ectasia: Dilation
-ectomy: Removal, excision, resection
-edema: Swelling
emesis: Vomiting
-emia: Condition of the blood
-esis / -sis: Action, process, condition
-fida: Splitting, to split
-gen: To produce, produced by
-graph: Instrument to record
-graphy: Process of recording
-gravida: Pregnancy, gestation
-ia, ism: Condition
-iasis: Condition, process
ic, -iac, -id, -ion: Pertaining to
-ion, -ation, -tion, -ization: Process
-ist: One who specializes/specialist of
-itis: Inflammation
-lepsy: Seizure
-listhesis: Slipping
-lithotomy: Incision for removal of a stone
-logy: Study of
-lysis: Loosening, breaking down, freeing from adhesions, separation